0.5.12 - ci-build

SpaceflightHealthSimulationsReferenceDocumentation - Local Development build (v0.5.12) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Logical Model: SpacecraftLifeSupportTelemetry - XML Profile

Active as of 2026-03-25

XML representation of the SpacecraftLifeSupportTelemetry logical model.

Raw xml | Download


<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="SpacecraftLifeSupportTelemetry"/>
  <text>
    <status value="extensions"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition SpacecraftLifeSupportTelemetry</b></p><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description &amp; Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry" title="A logical model representing Environmental Control and Life Support Systems (ECLSS) parameters monitored in spacecraft habitat modules.">SpacecraftLifeSupportTelemetry</a><a name="SpacecraftLifeSupportTelemetry"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://build.fhir.org/types.html#Base">Base</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Spacecraft Life Support Telemetry</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.atmosphericComposition" title="Measurement of atmospheric gas composition">atmosphericComposition</a><a name="SpacecraftLifeSupportTelemetry.atmosphericComposition"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Measurement of atmospheric gas composition</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent" title="Oxygen concentration in cabin air, typically around 21%. Crucial for breathing; must stay in safe range to avoid hypoxia or fire risk.">o2Percent</a><a name="SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Oxygen percentage</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm" title="Carbon dioxide concentration in cabin air, measured in parts per million (ppm).">co2Ppm</a><a name="SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Carbon dioxide level</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent" title="Nitrogen concentration in cabin air, typically around 78%.">n2Percent</a><a name="SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Nitrogen percentage</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm" title="Methane concentration in cabin air, measured in parts per million (ppm).">ch4Ppm</a><a name="SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Methane level</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm" title="Hydrogen concentration in cabin air, measured in parts per million (ppm).">h2Ppm</a><a name="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Hydrogen level</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck100.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure" title="Water vapor partial pressure in cabin air, indicating absolute humidity.">h2oPartialPressure</a><a name="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Water vapor partial pressure</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: white; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.climateControl" title="Cabin pressure, temperature and humidity parameters">climateControl</a><a name="SpacecraftLifeSupportTelemetry.climateControl"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Cabin pressure, temperature and humidity parameters</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa" title="Total cabin atmospheric pressure, nominally around 101 kPa.">cabinPressureKPa</a><a name="SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Cabin pressure</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC" title="Cabin air temperature, kept in 18-27°C safe range.">cabinTemperatureC</a><a name="SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Cabin temperature</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent" title="Relative humidity in cabin air, as a percentage.">cabinHumidityPercent</a><a name="SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Cabin humidity</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck100.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC" title="Dew point temperature of cabin air in degrees Celsius.">cabinDewPointC</a><a name="SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Cabin dew point</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airborneContaminants" title="Trace contaminants and VOCs in cabin air">airborneContaminants</a><a name="SpacecraftLifeSupportTelemetry.airborneContaminants"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Trace contaminants and VOCs in cabin air</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm" title="Carbon monoxide concentration in cabin air, measured in parts per million (ppm).">coPpm</a><a name="SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Carbon monoxide level</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm" title="Ammonia concentration in cabin air, measured in parts per million (ppm).">nh3Ppm</a><a name="SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Ammonia level</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm" title="Formaldehyde concentration in cabin air, measured in parts per million (ppm).">formaldehydePpm</a><a name="SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Formaldehyde level</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck101.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm" title="Measurements of other volatile organic compounds in cabin air.">otherVocPpm</a><a name="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Other VOC measurements<br/></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1010.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: white; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound" title="Type of volatile organic compound">compound</a><a name="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Type of volatile organic compound</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1000.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration" title="Concentration in parts per million">concentration</a><a name="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Concentration in parts per million</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: white; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airFiltrationSystem" title="Status of air filtration and trace contaminant control systems">airFiltrationSystem</a><a name="SpacecraftLifeSupportTelemetry.airFiltrationSystem"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Status of air filtration and trace contaminant control systems</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus" title="Operational status of the Trace Contaminant Control System.">tccsStatus</a><a name="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">TCCS status</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent" title="Trace contaminant filter utilization percentage.">tccsFilterLoadPercent</a><a name="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">TCCS filter load</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck100.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus" title="Condition of the cabin air filter.">airFilterStatus</a><a name="SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Air filter status</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: white; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.particulateMonitoring" title="Particulate and microbial measurements">particulateMonitoring</a><a name="SpacecraftLifeSupportTelemetry.particulateMonitoring"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Particulate and microbial measurements</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3" title="Airborne particulate concentration, mass of dust/aerosol per volume.">particulateMatterUgPerM3</a><a name="SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Particulate matter</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc" title="Number of particles per cubic centimeter above a certain size.">particleCountPerCc</a><a name="SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Particle count</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3" title="Concentration of microbial colony-forming units in cabin air.">microbialAirCountCfuPerM3</a><a name="SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Airborne microbial count</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck100.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2" title="Microbial load on surfaces from swab sampling.">surfaceMicrobeCountCfuPer100cm2</a><a name="SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Surface microbial count</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.radiationEnvironment" title="Radiation measurements and shielding status">radiationEnvironment</a><a name="SpacecraftLifeSupportTelemetry.radiationEnvironment"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Radiation measurements and shielding status</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr" title="Current ionizing radiation dose rate in the cabin.">radiationDoseRateUSvPerHr</a><a name="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Radiation dose rate</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv" title="Cumulative radiation dose received during the mission.">radiationCumulativeMSv</a><a name="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Cumulative radiation</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel" title="Indicates if radiation has crossed thresholds requiring crew action.">radiationAlertLevel</a><a name="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Radiation alert level</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode" title="Current shielding configuration of the habitat.">shieldingMode</a><a name="SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Shielding mode</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck100.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency" title="Percentage of radiation being attenuated by the spacecraft structure.">radiationShieldEfficiency</a><a name="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#decimal">decimal</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Shield efficiency</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.timestamp" title="The date and time when the environmental measurements were recorded.">timestamp</a><a name="SpacecraftLifeSupportTelemetry.timestamp"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#dateTime">dateTime</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Measurement timestamp</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_reference.png" alt="." style="background-color: white; background-color: inherit" title="Reference to another Resource" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.location" title="Reference to the specific module or compartment where these measurements were taken.">location</a><a name="SpacecraftLifeSupportTelemetry.location"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/references.html">Reference</a>(<a href="http://hl7.org/fhir/R4/location.html">Location</a>)</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Measurement location</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_reference.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Reference to another Resource" class="hierarchy"/> <a href="StructureDefinition-SpacecraftLifeSupportTelemetry-definitions.html#SpacecraftLifeSupportTelemetry.spacecraft" title="Reference to the spacecraft or habitat module where these measurements were taken.">spacecraft</a><a name="SpacecraftLifeSupportTelemetry.spacecraft"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/references.html">Reference</a>(<a href="http://hl7.org/fhir/R4/device.html">Device</a>)</td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Spacecraft reference</td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
  </text>
  <url
       value="https://mitre.org/fhir/space-health/StructureDefinition/SpacecraftLifeSupportTelemetry"/>
  <version value="0.5.12"/>
  <name value="SpacecraftLifeSupportTelemetry"/>
  <title value="Spacecraft Life Support Telemetry"/>
  <status value="active"/>
  <date value="2026-03-25T00:24:16-05:00"/>
  <publisher value="MITRE"/>
  <contact>
    <name value="MITRE"/>
    <telecom>
      <system value="url"/>
      <value value="https://www.mitre.org/"/>
    </telecom>
  </contact>
  <description
               value="A logical model representing Environmental Control and Life Support Systems (ECLSS) parameters monitored in spacecraft habitat modules."/>
  <purpose
           value="To standardize telemetry data for environmental monitoring of spacecraft habitat conditions"/>
  <fhirVersion value="4.0.1"/>
  <kind value="logical"/>
  <abstract value="false"/>
  <type
        value="https://mitre.org/fhir/space-health/StructureDefinition/SpacecraftLifeSupportTelemetry"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Base"/>
  <derivation value="specialization"/>
  <snapshot>
    <extension
               url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version">
      <valueString value="4.0.1"/>
    </extension>
    <element id="SpacecraftLifeSupportTelemetry">
      <path value="SpacecraftLifeSupportTelemetry"/>
      <short value="Spacecraft Life Support Telemetry"/>
      <definition
                  value="A logical model representing Environmental Control and Life Support Systems (ECLSS) parameters monitored in spacecraft habitat modules."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Base"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <isModifier value="false"/>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.atmosphericComposition">
      <path value="SpacecraftLifeSupportTelemetry.atmosphericComposition"/>
      <short value="Measurement of atmospheric gas composition"/>
      <definition value="Measurement of atmospheric gas composition"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.atmosphericComposition"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.atmosphericComposition.id">
      <path value="SpacecraftLifeSupportTelemetry.atmosphericComposition.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.extension">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Additional content defined by implementations"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.modifierExtension">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent"/>
      <short value="Oxygen percentage"/>
      <definition
                  value="Oxygen concentration in cabin air, typically around 21%. Crucial for breathing; must stay in safe range to avoid hypoxia or fire risk."/>
      <comment
               value="Target is approximately 21%. Alert if below 19.5% (hypoxia risk) or above 23% (fire hazard)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm"/>
      <short value="Carbon dioxide level"/>
      <definition
                  value="Carbon dioxide concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Kept low (thousands of ppm) to prevent crew headaches, dizziness. Alerts if above allowable limit (NASA 3 mmHg ≈ 4000 ppm 1-hr)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent"/>
      <short value="Nitrogen percentage"/>
      <definition
                  value="Nitrogen concentration in cabin air, typically around 78%."/>
      <comment
               value="Primary buffer gas to maintain pressure. Changes may indicate pressure adjustments."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm"/>
      <short value="Methane level"/>
      <definition
                  value="Methane concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Typically near 0. Monitored as part of atmospheric quality and as a flammability indicator."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm"/>
      <short value="Hydrogen level"/>
      <definition
                  value="Hydrogen concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Should be approximately 0; any reading flags a leak or issue as hydrogen is flammable."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure"/>
      <short value="Water vapor partial pressure"/>
      <definition
                  value="Water vapor partial pressure in cabin air, indicating absolute humidity."/>
      <comment
               value="Managed to prevent condensation; relates to approximately 40-60% relative humidity comfort range."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.climateControl">
      <path value="SpacecraftLifeSupportTelemetry.climateControl"/>
      <short value="Cabin pressure, temperature and humidity parameters"/>
      <definition
                  value="Cabin pressure, temperature and humidity parameters"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.climateControl"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.climateControl.id">
      <path value="SpacecraftLifeSupportTelemetry.climateControl.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.climateControl.extension">
      <path value="SpacecraftLifeSupportTelemetry.climateControl.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Additional content defined by implementations"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.modifierExtension">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa"/>
      <short value="Cabin pressure"/>
      <definition
                  value="Total cabin atmospheric pressure, nominally around 101 kPa."/>
      <comment
               value="Vital for habitability; deviations can cause decompression risks."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC"/>
      <short value="Cabin temperature"/>
      <definition value="Cabin air temperature, kept in 18-27°C safe range."/>
      <comment
               value="Optimal temperature around 22°C for crew health and comfort."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent"/>
      <short value="Cabin humidity"/>
      <definition value="Relative humidity in cabin air, as a percentage."/>
      <comment
               value="Controlled between 30-60% for comfort with limits at 25-75%. Prevents dry air or condensation issues."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC"/>
      <short value="Cabin dew point"/>
      <definition
                  value="Dew point temperature of cabin air in degrees Celsius."/>
      <comment
               value="Useful for monitoring moisture load and condensation risk. Derived from humidity and temperature."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airborneContaminants">
      <path value="SpacecraftLifeSupportTelemetry.airborneContaminants"/>
      <short value="Trace contaminants and VOCs in cabin air"/>
      <definition value="Trace contaminants and VOCs in cabin air"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.airborneContaminants"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airborneContaminants.id">
      <path value="SpacecraftLifeSupportTelemetry.airborneContaminants.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.extension">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Additional content defined by implementations"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.modifierExtension">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm"/>
      <short value="Carbon monoxide level"/>
      <definition
                  value="Carbon monoxide concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Normally 0. Toxic gas from fire or malfunctions; triggers immediate alarm if detected."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm"/>
      <short value="Ammonia level"/>
      <definition
                  value="Ammonia concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Normally 0. Toxic/irritant gas that indicates coolant leaks or contamination."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm"/>
      <short value="Formaldehyde level"/>
      <definition
                  value="Formaldehyde concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Target approximately 0; common off-gassed irritant. Tracked to ensure long-term exposure stays below SMAC limits."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm"/>
      <short value="Other VOC measurements"/>
      <definition
                  value="Measurements of other volatile organic compounds in cabin air."/>
      <comment
               value="Used for specific volatile toxins (e.g., benzene, freon) to ensure air remains non-toxic."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.id">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.extension">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Additional content defined by implementations"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.modifierExtension">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound"/>
      <short value="Type of volatile organic compound"/>
      <definition value="Type of volatile organic compound"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration"/>
      <short value="Concentration in parts per million"/>
      <definition value="Concentration in parts per million"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airFiltrationSystem">
      <path value="SpacecraftLifeSupportTelemetry.airFiltrationSystem"/>
      <short
             value="Status of air filtration and trace contaminant control systems"/>
      <definition
                  value="Status of air filtration and trace contaminant control systems"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.airFiltrationSystem"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.id">
      <path value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.extension">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Additional content defined by implementations"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.modifierExtension">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus"/>
      <short value="TCCS status"/>
      <definition
                  value="Operational status of the Trace Contaminant Control System."/>
      <comment
               value="Values may include: 'nominal', 'standby', 'off', 'fault'"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent"/>
      <short value="TCCS filter load"/>
      <definition value="Trace contaminant filter utilization percentage."/>
      <comment
               value="High values warn of reduced ability to clean air (filter saturation)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus"/>
      <short value="Air filter status"/>
      <definition value="Condition of the cabin air filter."/>
      <comment
               value="Values may include: 'nominal', 'partial_clog', 'clogged'. Ensures ventilation efficacy; a clogged filter can lead to poor air quality."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.particulateMonitoring">
      <path value="SpacecraftLifeSupportTelemetry.particulateMonitoring"/>
      <short value="Particulate and microbial measurements"/>
      <definition value="Particulate and microbial measurements"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.particulateMonitoring"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.particulateMonitoring.id">
      <path value="SpacecraftLifeSupportTelemetry.particulateMonitoring.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.extension">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Additional content defined by implementations"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.modifierExtension">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3"/>
      <short value="Particulate matter"/>
      <definition
                  value="Airborne particulate concentration, mass of dust/aerosol per volume."/>
      <comment
               value="Typically low in a clean cabin; rises if dust or smoke appears."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc"/>
      <short value="Particle count"/>
      <definition
                  value="Number of particles per cubic centimeter above a certain size."/>
      <comment
               value="Complements mass concentration as another measure of air cleanliness."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3"/>
      <short value="Airborne microbial count"/>
      <definition
                  value="Concentration of microbial colony-forming units in cabin air."/>
      <comment
               value="Indicates biological cleanliness of air. May be measured periodically rather than continuously."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2"/>
      <short value="Surface microbial count"/>
      <definition value="Microbial load on surfaces from swab sampling."/>
      <comment
               value="High values could contribute to air contamination or crew infection risk."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.radiationEnvironment">
      <path value="SpacecraftLifeSupportTelemetry.radiationEnvironment"/>
      <short value="Radiation measurements and shielding status"/>
      <definition value="Radiation measurements and shielding status"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.radiationEnvironment"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.radiationEnvironment.id">
      <path value="SpacecraftLifeSupportTelemetry.radiationEnvironment.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.extension">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Additional content defined by implementations"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.modifierExtension">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr"/>
      <short value="Radiation dose rate"/>
      <definition value="Current ionizing radiation dose rate in the cabin."/>
      <comment
               value="Reflects cosmic ray/solar radiation environment; used to assess immediate radiation risk."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv"/>
      <short value="Cumulative radiation"/>
      <definition
                  value="Cumulative radiation dose received during the mission."/>
      <comment value="Tracks long-term exposure against established limits."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel"/>
      <short value="Radiation alert level"/>
      <definition
                  value="Indicates if radiation has crossed thresholds requiring crew action."/>
      <comment value="Values may include: 'nominal', 'elevated', 'storm'."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode"/>
      <short value="Shielding mode"/>
      <definition value="Current shielding configuration of the habitat."/>
      <comment
               value="Indicates if extra precautions are in effect due to radiation, such as 'standard', 'storm_shelter'."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency"/>
      <short value="Shield efficiency"/>
      <definition
                  value="Percentage of radiation being attenuated by the spacecraft structure."/>
      <comment
               value="Optional metric that indicates how much radiation is being blocked."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path
              value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.timestamp">
      <path value="SpacecraftLifeSupportTelemetry.timestamp"/>
      <short value="Measurement timestamp"/>
      <definition
                  value="The date and time when the environmental measurements were recorded."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.timestamp"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="dateTime"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.location">
      <path value="SpacecraftLifeSupportTelemetry.location"/>
      <short value="Measurement location"/>
      <definition
                  value="Reference to the specific module or compartment where these measurements were taken."/>
      <comment
               value="Important for spacecraft with multiple habitable volumes that may have different environmental parameters."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.location"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Location"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.spacecraft">
      <path value="SpacecraftLifeSupportTelemetry.spacecraft"/>
      <short value="Spacecraft reference"/>
      <definition
                  value="Reference to the spacecraft or habitat module where these measurements were taken."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SpacecraftLifeSupportTelemetry.spacecraft"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Device"/>
      </type>
    </element>
  </snapshot>
  <differential>
    <element id="SpacecraftLifeSupportTelemetry">
      <path value="SpacecraftLifeSupportTelemetry"/>
      <short value="Spacecraft Life Support Telemetry"/>
      <definition
                  value="A logical model representing Environmental Control and Life Support Systems (ECLSS) parameters monitored in spacecraft habitat modules."/>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.atmosphericComposition">
      <path value="SpacecraftLifeSupportTelemetry.atmosphericComposition"/>
      <short value="Measurement of atmospheric gas composition"/>
      <definition value="Measurement of atmospheric gas composition"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent"/>
      <short value="Oxygen percentage"/>
      <definition
                  value="Oxygen concentration in cabin air, typically around 21%. Crucial for breathing; must stay in safe range to avoid hypoxia or fire risk."/>
      <comment
               value="Target is approximately 21%. Alert if below 19.5% (hypoxia risk) or above 23% (fire hazard)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm"/>
      <short value="Carbon dioxide level"/>
      <definition
                  value="Carbon dioxide concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Kept low (thousands of ppm) to prevent crew headaches, dizziness. Alerts if above allowable limit (NASA 3 mmHg ≈ 4000 ppm 1-hr)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent"/>
      <short value="Nitrogen percentage"/>
      <definition
                  value="Nitrogen concentration in cabin air, typically around 78%."/>
      <comment
               value="Primary buffer gas to maintain pressure. Changes may indicate pressure adjustments."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm"/>
      <short value="Methane level"/>
      <definition
                  value="Methane concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Typically near 0. Monitored as part of atmospheric quality and as a flammability indicator."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm"/>
      <short value="Hydrogen level"/>
      <definition
                  value="Hydrogen concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Should be approximately 0; any reading flags a leak or issue as hydrogen is flammable."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure">
      <path
            value="SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure"/>
      <short value="Water vapor partial pressure"/>
      <definition
                  value="Water vapor partial pressure in cabin air, indicating absolute humidity."/>
      <comment
               value="Managed to prevent condensation; relates to approximately 40-60% relative humidity comfort range."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.climateControl">
      <path value="SpacecraftLifeSupportTelemetry.climateControl"/>
      <short value="Cabin pressure, temperature and humidity parameters"/>
      <definition
                  value="Cabin pressure, temperature and humidity parameters"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa"/>
      <short value="Cabin pressure"/>
      <definition
                  value="Total cabin atmospheric pressure, nominally around 101 kPa."/>
      <comment
               value="Vital for habitability; deviations can cause decompression risks."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC"/>
      <short value="Cabin temperature"/>
      <definition value="Cabin air temperature, kept in 18-27°C safe range."/>
      <comment
               value="Optimal temperature around 22°C for crew health and comfort."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent"/>
      <short value="Cabin humidity"/>
      <definition value="Relative humidity in cabin air, as a percentage."/>
      <comment
               value="Controlled between 30-60% for comfort with limits at 25-75%. Prevents dry air or condensation issues."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC">
      <path
            value="SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC"/>
      <short value="Cabin dew point"/>
      <definition
                  value="Dew point temperature of cabin air in degrees Celsius."/>
      <comment
               value="Useful for monitoring moisture load and condensation risk. Derived from humidity and temperature."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airborneContaminants">
      <path value="SpacecraftLifeSupportTelemetry.airborneContaminants"/>
      <short value="Trace contaminants and VOCs in cabin air"/>
      <definition value="Trace contaminants and VOCs in cabin air"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm"/>
      <short value="Carbon monoxide level"/>
      <definition
                  value="Carbon monoxide concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Normally 0. Toxic gas from fire or malfunctions; triggers immediate alarm if detected."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm"/>
      <short value="Ammonia level"/>
      <definition
                  value="Ammonia concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Normally 0. Toxic/irritant gas that indicates coolant leaks or contamination."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm"/>
      <short value="Formaldehyde level"/>
      <definition
                  value="Formaldehyde concentration in cabin air, measured in parts per million (ppm)."/>
      <comment
               value="Target approximately 0; common off-gassed irritant. Tracked to ensure long-term exposure stays below SMAC limits."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm"/>
      <short value="Other VOC measurements"/>
      <definition
                  value="Measurements of other volatile organic compounds in cabin air."/>
      <comment
               value="Used for specific volatile toxins (e.g., benzene, freon) to ensure air remains non-toxic."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound"/>
      <short value="Type of volatile organic compound"/>
      <definition value="Type of volatile organic compound"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="CodeableConcept"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration">
      <path
            value="SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration"/>
      <short value="Concentration in parts per million"/>
      <definition value="Concentration in parts per million"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.airFiltrationSystem">
      <path value="SpacecraftLifeSupportTelemetry.airFiltrationSystem"/>
      <short
             value="Status of air filtration and trace contaminant control systems"/>
      <definition
                  value="Status of air filtration and trace contaminant control systems"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus"/>
      <short value="TCCS status"/>
      <definition
                  value="Operational status of the Trace Contaminant Control System."/>
      <comment
               value="Values may include: 'nominal', 'standby', 'off', 'fault'"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent"/>
      <short value="TCCS filter load"/>
      <definition value="Trace contaminant filter utilization percentage."/>
      <comment
               value="High values warn of reduced ability to clean air (filter saturation)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus">
      <path
            value="SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus"/>
      <short value="Air filter status"/>
      <definition value="Condition of the cabin air filter."/>
      <comment
               value="Values may include: 'nominal', 'partial_clog', 'clogged'. Ensures ventilation efficacy; a clogged filter can lead to poor air quality."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.particulateMonitoring">
      <path value="SpacecraftLifeSupportTelemetry.particulateMonitoring"/>
      <short value="Particulate and microbial measurements"/>
      <definition value="Particulate and microbial measurements"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3"/>
      <short value="Particulate matter"/>
      <definition
                  value="Airborne particulate concentration, mass of dust/aerosol per volume."/>
      <comment
               value="Typically low in a clean cabin; rises if dust or smoke appears."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc"/>
      <short value="Particle count"/>
      <definition
                  value="Number of particles per cubic centimeter above a certain size."/>
      <comment
               value="Complements mass concentration as another measure of air cleanliness."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3"/>
      <short value="Airborne microbial count"/>
      <definition
                  value="Concentration of microbial colony-forming units in cabin air."/>
      <comment
               value="Indicates biological cleanliness of air. May be measured periodically rather than continuously."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2">
      <path
            value="SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2"/>
      <short value="Surface microbial count"/>
      <definition value="Microbial load on surfaces from swab sampling."/>
      <comment
               value="High values could contribute to air contamination or crew infection risk."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.radiationEnvironment">
      <path value="SpacecraftLifeSupportTelemetry.radiationEnvironment"/>
      <short value="Radiation measurements and shielding status"/>
      <definition value="Radiation measurements and shielding status"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="BackboneElement"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr"/>
      <short value="Radiation dose rate"/>
      <definition value="Current ionizing radiation dose rate in the cabin."/>
      <comment
               value="Reflects cosmic ray/solar radiation environment; used to assess immediate radiation risk."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv"/>
      <short value="Cumulative radiation"/>
      <definition
                  value="Cumulative radiation dose received during the mission."/>
      <comment value="Tracks long-term exposure against established limits."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel"/>
      <short value="Radiation alert level"/>
      <definition
                  value="Indicates if radiation has crossed thresholds requiring crew action."/>
      <comment value="Values may include: 'nominal', 'elevated', 'storm'."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode"/>
      <short value="Shielding mode"/>
      <definition value="Current shielding configuration of the habitat."/>
      <comment
               value="Indicates if extra precautions are in effect due to radiation, such as 'standard', 'storm_shelter'."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
    </element>
    <element
             id="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency">
      <path
            value="SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency"/>
      <short value="Shield efficiency"/>
      <definition
                  value="Percentage of radiation being attenuated by the spacecraft structure."/>
      <comment
               value="Optional metric that indicates how much radiation is being blocked."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.timestamp">
      <path value="SpacecraftLifeSupportTelemetry.timestamp"/>
      <short value="Measurement timestamp"/>
      <definition
                  value="The date and time when the environmental measurements were recorded."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="dateTime"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.location">
      <path value="SpacecraftLifeSupportTelemetry.location"/>
      <short value="Measurement location"/>
      <definition
                  value="Reference to the specific module or compartment where these measurements were taken."/>
      <comment
               value="Important for spacecraft with multiple habitable volumes that may have different environmental parameters."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Location"/>
      </type>
    </element>
    <element id="SpacecraftLifeSupportTelemetry.spacecraft">
      <path value="SpacecraftLifeSupportTelemetry.spacecraft"/>
      <short value="Spacecraft reference"/>
      <definition
                  value="Reference to the spacecraft or habitat module where these measurements were taken."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Reference"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/Device"/>
      </type>
    </element>
  </differential>
</StructureDefinition>