{ "resourceType" : "StructureDefinition", "id" : "SpacecraftLifeSupportTelemetry", "text" : { "status" : "extensions", "div" : "

Generated Narrative: StructureDefinition SpacecraftLifeSupportTelemetry

\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
NameFlagsCard.TypeDescription & Constraints\"doco\"
\".\"\".\" SpacecraftLifeSupportTelemetry 0..*BaseSpacecraft Life Support Telemetry
\".\"\".\"\".\" atmosphericComposition 0..1BackboneElementMeasurement of atmospheric gas composition
\".\"\".\"\".\"\".\" o2Percent 0..1decimalOxygen percentage
\".\"\".\"\".\"\".\" co2Ppm 0..1decimalCarbon dioxide level
\".\"\".\"\".\"\".\" n2Percent 0..1decimalNitrogen percentage
\".\"\".\"\".\"\".\" ch4Ppm 0..1decimalMethane level
\".\"\".\"\".\"\".\" h2Ppm 0..1decimalHydrogen level
\".\"\".\"\".\"\".\" h2oPartialPressure 0..1decimalWater vapor partial pressure
\".\"\".\"\".\" climateControl 0..1BackboneElementCabin pressure, temperature and humidity parameters
\".\"\".\"\".\"\".\" cabinPressureKPa 0..1decimalCabin pressure
\".\"\".\"\".\"\".\" cabinTemperatureC 0..1decimalCabin temperature
\".\"\".\"\".\"\".\" cabinHumidityPercent 0..1decimalCabin humidity
\".\"\".\"\".\"\".\" cabinDewPointC 0..1decimalCabin dew point
\".\"\".\"\".\" airborneContaminants 0..1BackboneElementTrace contaminants and VOCs in cabin air
\".\"\".\"\".\"\".\" coPpm 0..1decimalCarbon monoxide level
\".\"\".\"\".\"\".\" nh3Ppm 0..1decimalAmmonia level
\".\"\".\"\".\"\".\" formaldehydePpm 0..1decimalFormaldehyde level
\".\"\".\"\".\"\".\" otherVocPpm 0..*BackboneElementOther VOC measurements
\".\"\".\"\".\"\".\"\".\" compound 1..1CodeableConceptType of volatile organic compound
\".\"\".\"\".\"\".\"\".\" concentration 1..1decimalConcentration in parts per million
\".\"\".\"\".\" airFiltrationSystem 0..1BackboneElementStatus of air filtration and trace contaminant control systems
\".\"\".\"\".\"\".\" tccsStatus 0..1codeTCCS status
\".\"\".\"\".\"\".\" tccsFilterLoadPercent 0..1decimalTCCS filter load
\".\"\".\"\".\"\".\" airFilterStatus 0..1codeAir filter status
\".\"\".\"\".\" particulateMonitoring 0..1BackboneElementParticulate and microbial measurements
\".\"\".\"\".\"\".\" particulateMatterUgPerM3 0..1decimalParticulate matter
\".\"\".\"\".\"\".\" particleCountPerCc 0..1decimalParticle count
\".\"\".\"\".\"\".\" microbialAirCountCfuPerM3 0..1decimalAirborne microbial count
\".\"\".\"\".\"\".\" surfaceMicrobeCountCfuPer100cm2 0..1decimalSurface microbial count
\".\"\".\"\".\" radiationEnvironment 0..1BackboneElementRadiation measurements and shielding status
\".\"\".\"\".\"\".\" radiationDoseRateUSvPerHr 0..1decimalRadiation dose rate
\".\"\".\"\".\"\".\" radiationCumulativeMSv 0..1decimalCumulative radiation
\".\"\".\"\".\"\".\" radiationAlertLevel 0..1codeRadiation alert level
\".\"\".\"\".\"\".\" shieldingMode 0..1codeShielding mode
\".\"\".\"\".\"\".\" radiationShieldEfficiency 0..1decimalShield efficiency
\".\"\".\"\".\" timestamp 1..1dateTimeMeasurement timestamp
\".\"\".\"\".\" location 0..1Reference(Location)Measurement location
\".\"\".\"\".\" spacecraft 0..1Reference(Device)Spacecraft reference

\"doco\" Documentation for this format
" }, "url" : "https://mitre.org/fhir/space-health/StructureDefinition/SpacecraftLifeSupportTelemetry", "version" : "0.5.12", "name" : "SpacecraftLifeSupportTelemetry", "title" : "Spacecraft Life Support Telemetry", "status" : "active", "date" : "2026-03-25T00:24:16-05:00", "publisher" : "MITRE", "contact" : [{ "name" : "MITRE", "telecom" : [{ "system" : "url", "value" : "https://www.mitre.org/" }] }], "description" : "A logical model representing Environmental Control and Life Support Systems (ECLSS) parameters monitored in spacecraft habitat modules.", "purpose" : "To standardize telemetry data for environmental monitoring of spacecraft habitat conditions", "fhirVersion" : "4.0.1", "kind" : "logical", "abstract" : false, "type" : "https://mitre.org/fhir/space-health/StructureDefinition/SpacecraftLifeSupportTelemetry", "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Base", "derivation" : "specialization", "snapshot" : { "extension" : [{ "url" : "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version", "valueString" : "4.0.1" }], "element" : [{ "id" : "SpacecraftLifeSupportTelemetry", "path" : "SpacecraftLifeSupportTelemetry", "short" : "Spacecraft Life Support Telemetry", "definition" : "A logical model representing Environmental Control and Life Support Systems (ECLSS) parameters monitored in spacecraft habitat modules.", "min" : 0, "max" : "*", "base" : { "path" : "Base", "min" : 0, "max" : "*" }, "isModifier" : false }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition", "short" : "Measurement of atmospheric gas composition", "definition" : "Measurement of atmospheric gas composition", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition", "min" : 0, "max" : "1" }, "type" : [{ "code" : "BackboneElement" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.id", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.id", "representation" : ["xmlAttr"], "short" : "Unique id for inter-element referencing", "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min" : 0, "max" : "1", "base" : { "path" : "Element.id", "min" : 0, "max" : "1" }, "type" : [{ "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl" : "string" }], "code" : "http://hl7.org/fhirpath/System.String" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.extension", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.extension", "slicing" : { "discriminator" : [{ "type" : "value", "path" : "url" }], "description" : "Extensions are always sliced by (at least) url", "rules" : "open" }, "short" : "Additional content defined by implementations", "definition" : "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" : "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" : ["extensions", "user content"], "min" : 0, "max" : "*", "base" : { "path" : "Element.extension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.modifierExtension", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.modifierExtension", "short" : "Extensions that cannot be ignored even if unrecognized", "definition" : "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.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).", "comment" : "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" : "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" : ["extensions", "user content", "modifiers"], "min" : 0, "max" : "*", "base" : { "path" : "BackboneElement.modifierExtension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : true, "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them", "isSummary" : true, "mapping" : [{ "identity" : "rim", "map" : "N/A" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent", "short" : "Oxygen percentage", "definition" : "Oxygen concentration in cabin air, typically around 21%. Crucial for breathing; must stay in safe range to avoid hypoxia or fire risk.", "comment" : "Target is approximately 21%. Alert if below 19.5% (hypoxia risk) or above 23% (fire hazard).", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm", "short" : "Carbon dioxide level", "definition" : "Carbon dioxide concentration in cabin air, measured in parts per million (ppm).", "comment" : "Kept low (thousands of ppm) to prevent crew headaches, dizziness. Alerts if above allowable limit (NASA 3 mmHg ≈ 4000 ppm 1-hr).", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent", "short" : "Nitrogen percentage", "definition" : "Nitrogen concentration in cabin air, typically around 78%.", "comment" : "Primary buffer gas to maintain pressure. Changes may indicate pressure adjustments.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm", "short" : "Methane level", "definition" : "Methane concentration in cabin air, measured in parts per million (ppm).", "comment" : "Typically near 0. Monitored as part of atmospheric quality and as a flammability indicator.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm", "short" : "Hydrogen level", "definition" : "Hydrogen concentration in cabin air, measured in parts per million (ppm).", "comment" : "Should be approximately 0; any reading flags a leak or issue as hydrogen is flammable.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure", "short" : "Water vapor partial pressure", "definition" : "Water vapor partial pressure in cabin air, indicating absolute humidity.", "comment" : "Managed to prevent condensation; relates to approximately 40-60% relative humidity comfort range.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl", "path" : "SpacecraftLifeSupportTelemetry.climateControl", "short" : "Cabin pressure, temperature and humidity parameters", "definition" : "Cabin pressure, temperature and humidity parameters", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.climateControl", "min" : 0, "max" : "1" }, "type" : [{ "code" : "BackboneElement" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.id", "path" : "SpacecraftLifeSupportTelemetry.climateControl.id", "representation" : ["xmlAttr"], "short" : "Unique id for inter-element referencing", "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min" : 0, "max" : "1", "base" : { "path" : "Element.id", "min" : 0, "max" : "1" }, "type" : [{ "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl" : "string" }], "code" : "http://hl7.org/fhirpath/System.String" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.extension", "path" : "SpacecraftLifeSupportTelemetry.climateControl.extension", "slicing" : { "discriminator" : [{ "type" : "value", "path" : "url" }], "description" : "Extensions are always sliced by (at least) url", "rules" : "open" }, "short" : "Additional content defined by implementations", "definition" : "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" : "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" : ["extensions", "user content"], "min" : 0, "max" : "*", "base" : { "path" : "Element.extension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.modifierExtension", "path" : "SpacecraftLifeSupportTelemetry.climateControl.modifierExtension", "short" : "Extensions that cannot be ignored even if unrecognized", "definition" : "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.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).", "comment" : "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" : "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" : ["extensions", "user content", "modifiers"], "min" : 0, "max" : "*", "base" : { "path" : "BackboneElement.modifierExtension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : true, "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them", "isSummary" : true, "mapping" : [{ "identity" : "rim", "map" : "N/A" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa", "short" : "Cabin pressure", "definition" : "Total cabin atmospheric pressure, nominally around 101 kPa.", "comment" : "Vital for habitability; deviations can cause decompression risks.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC", "short" : "Cabin temperature", "definition" : "Cabin air temperature, kept in 18-27°C safe range.", "comment" : "Optimal temperature around 22°C for crew health and comfort.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent", "short" : "Cabin humidity", "definition" : "Relative humidity in cabin air, as a percentage.", "comment" : "Controlled between 30-60% for comfort with limits at 25-75%. Prevents dry air or condensation issues.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC", "short" : "Cabin dew point", "definition" : "Dew point temperature of cabin air in degrees Celsius.", "comment" : "Useful for monitoring moisture load and condensation risk. Derived from humidity and temperature.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants", "short" : "Trace contaminants and VOCs in cabin air", "definition" : "Trace contaminants and VOCs in cabin air", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants", "min" : 0, "max" : "1" }, "type" : [{ "code" : "BackboneElement" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.id", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.id", "representation" : ["xmlAttr"], "short" : "Unique id for inter-element referencing", "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min" : 0, "max" : "1", "base" : { "path" : "Element.id", "min" : 0, "max" : "1" }, "type" : [{ "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl" : "string" }], "code" : "http://hl7.org/fhirpath/System.String" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.extension", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.extension", "slicing" : { "discriminator" : [{ "type" : "value", "path" : "url" }], "description" : "Extensions are always sliced by (at least) url", "rules" : "open" }, "short" : "Additional content defined by implementations", "definition" : "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" : "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" : ["extensions", "user content"], "min" : 0, "max" : "*", "base" : { "path" : "Element.extension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.modifierExtension", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.modifierExtension", "short" : "Extensions that cannot be ignored even if unrecognized", "definition" : "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.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).", "comment" : "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" : "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" : ["extensions", "user content", "modifiers"], "min" : 0, "max" : "*", "base" : { "path" : "BackboneElement.modifierExtension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : true, "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them", "isSummary" : true, "mapping" : [{ "identity" : "rim", "map" : "N/A" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm", "short" : "Carbon monoxide level", "definition" : "Carbon monoxide concentration in cabin air, measured in parts per million (ppm).", "comment" : "Normally 0. Toxic gas from fire or malfunctions; triggers immediate alarm if detected.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm", "short" : "Ammonia level", "definition" : "Ammonia concentration in cabin air, measured in parts per million (ppm).", "comment" : "Normally 0. Toxic/irritant gas that indicates coolant leaks or contamination.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm", "short" : "Formaldehyde level", "definition" : "Formaldehyde concentration in cabin air, measured in parts per million (ppm).", "comment" : "Target approximately 0; common off-gassed irritant. Tracked to ensure long-term exposure stays below SMAC limits.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm", "short" : "Other VOC measurements", "definition" : "Measurements of other volatile organic compounds in cabin air.", "comment" : "Used for specific volatile toxins (e.g., benzene, freon) to ensure air remains non-toxic.", "min" : 0, "max" : "*", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm", "min" : 0, "max" : "*" }, "type" : [{ "code" : "BackboneElement" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.id", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.id", "representation" : ["xmlAttr"], "short" : "Unique id for inter-element referencing", "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min" : 0, "max" : "1", "base" : { "path" : "Element.id", "min" : 0, "max" : "1" }, "type" : [{ "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl" : "string" }], "code" : "http://hl7.org/fhirpath/System.String" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.extension", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.extension", "slicing" : { "discriminator" : [{ "type" : "value", "path" : "url" }], "description" : "Extensions are always sliced by (at least) url", "rules" : "open" }, "short" : "Additional content defined by implementations", "definition" : "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" : "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" : ["extensions", "user content"], "min" : 0, "max" : "*", "base" : { "path" : "Element.extension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.modifierExtension", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.modifierExtension", "short" : "Extensions that cannot be ignored even if unrecognized", "definition" : "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.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).", "comment" : "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" : "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" : ["extensions", "user content", "modifiers"], "min" : 0, "max" : "*", "base" : { "path" : "BackboneElement.modifierExtension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : true, "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them", "isSummary" : true, "mapping" : [{ "identity" : "rim", "map" : "N/A" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound", "short" : "Type of volatile organic compound", "definition" : "Type of volatile organic compound", "min" : 1, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound", "min" : 1, "max" : "1" }, "type" : [{ "code" : "CodeableConcept" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration", "short" : "Concentration in parts per million", "definition" : "Concentration in parts per million", "min" : 1, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration", "min" : 1, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem", "short" : "Status of air filtration and trace contaminant control systems", "definition" : "Status of air filtration and trace contaminant control systems", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem", "min" : 0, "max" : "1" }, "type" : [{ "code" : "BackboneElement" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.id", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.id", "representation" : ["xmlAttr"], "short" : "Unique id for inter-element referencing", "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min" : 0, "max" : "1", "base" : { "path" : "Element.id", "min" : 0, "max" : "1" }, "type" : [{ "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl" : "string" }], "code" : "http://hl7.org/fhirpath/System.String" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.extension", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.extension", "slicing" : { "discriminator" : [{ "type" : "value", "path" : "url" }], "description" : "Extensions are always sliced by (at least) url", "rules" : "open" }, "short" : "Additional content defined by implementations", "definition" : "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" : "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" : ["extensions", "user content"], "min" : 0, "max" : "*", "base" : { "path" : "Element.extension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.modifierExtension", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.modifierExtension", "short" : "Extensions that cannot be ignored even if unrecognized", "definition" : "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.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).", "comment" : "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" : "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" : ["extensions", "user content", "modifiers"], "min" : 0, "max" : "*", "base" : { "path" : "BackboneElement.modifierExtension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : true, "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them", "isSummary" : true, "mapping" : [{ "identity" : "rim", "map" : "N/A" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus", "short" : "TCCS status", "definition" : "Operational status of the Trace Contaminant Control System.", "comment" : "Values may include: 'nominal', 'standby', 'off', 'fault'", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus", "min" : 0, "max" : "1" }, "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent", "short" : "TCCS filter load", "definition" : "Trace contaminant filter utilization percentage.", "comment" : "High values warn of reduced ability to clean air (filter saturation).", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus", "short" : "Air filter status", "definition" : "Condition of the cabin air filter.", "comment" : "Values may include: 'nominal', 'partial_clog', 'clogged'. Ensures ventilation efficacy; a clogged filter can lead to poor air quality.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus", "min" : 0, "max" : "1" }, "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring", "short" : "Particulate and microbial measurements", "definition" : "Particulate and microbial measurements", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring", "min" : 0, "max" : "1" }, "type" : [{ "code" : "BackboneElement" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.id", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.id", "representation" : ["xmlAttr"], "short" : "Unique id for inter-element referencing", "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min" : 0, "max" : "1", "base" : { "path" : "Element.id", "min" : 0, "max" : "1" }, "type" : [{ "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl" : "string" }], "code" : "http://hl7.org/fhirpath/System.String" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.extension", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.extension", "slicing" : { "discriminator" : [{ "type" : "value", "path" : "url" }], "description" : "Extensions are always sliced by (at least) url", "rules" : "open" }, "short" : "Additional content defined by implementations", "definition" : "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" : "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" : ["extensions", "user content"], "min" : 0, "max" : "*", "base" : { "path" : "Element.extension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.modifierExtension", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.modifierExtension", "short" : "Extensions that cannot be ignored even if unrecognized", "definition" : "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.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).", "comment" : "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" : "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" : ["extensions", "user content", "modifiers"], "min" : 0, "max" : "*", "base" : { "path" : "BackboneElement.modifierExtension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : true, "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them", "isSummary" : true, "mapping" : [{ "identity" : "rim", "map" : "N/A" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3", "short" : "Particulate matter", "definition" : "Airborne particulate concentration, mass of dust/aerosol per volume.", "comment" : "Typically low in a clean cabin; rises if dust or smoke appears.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc", "short" : "Particle count", "definition" : "Number of particles per cubic centimeter above a certain size.", "comment" : "Complements mass concentration as another measure of air cleanliness.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3", "short" : "Airborne microbial count", "definition" : "Concentration of microbial colony-forming units in cabin air.", "comment" : "Indicates biological cleanliness of air. May be measured periodically rather than continuously.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2", "short" : "Surface microbial count", "definition" : "Microbial load on surfaces from swab sampling.", "comment" : "High values could contribute to air contamination or crew infection risk.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment", "short" : "Radiation measurements and shielding status", "definition" : "Radiation measurements and shielding status", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment", "min" : 0, "max" : "1" }, "type" : [{ "code" : "BackboneElement" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.id", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.id", "representation" : ["xmlAttr"], "short" : "Unique id for inter-element referencing", "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min" : 0, "max" : "1", "base" : { "path" : "Element.id", "min" : 0, "max" : "1" }, "type" : [{ "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl" : "string" }], "code" : "http://hl7.org/fhirpath/System.String" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.extension", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.extension", "slicing" : { "discriminator" : [{ "type" : "value", "path" : "url" }], "description" : "Extensions are always sliced by (at least) url", "rules" : "open" }, "short" : "Additional content defined by implementations", "definition" : "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" : "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" : ["extensions", "user content"], "min" : 0, "max" : "*", "base" : { "path" : "Element.extension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : false, "isSummary" : false, "mapping" : [{ "identity" : "rim", "map" : "n/a" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.modifierExtension", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.modifierExtension", "short" : "Extensions that cannot be ignored even if unrecognized", "definition" : "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.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).", "comment" : "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" : "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" : ["extensions", "user content", "modifiers"], "min" : 0, "max" : "*", "base" : { "path" : "BackboneElement.modifierExtension", "min" : 0, "max" : "*" }, "type" : [{ "code" : "Extension" }], "constraint" : [{ "key" : "ele-1", "severity" : "error", "human" : "All FHIR elements must have a @value or children", "expression" : "hasValue() or (children().count() > id.count())", "xpath" : "@value|f:*|h:div", "source" : "http://hl7.org/fhir/StructureDefinition/Element" }, { "key" : "ext-1", "severity" : "error", "human" : "Must have either extensions or value[x], not both", "expression" : "extension.exists() != value.exists()", "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])", "source" : "http://hl7.org/fhir/StructureDefinition/Extension" }], "isModifier" : true, "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them", "isSummary" : true, "mapping" : [{ "identity" : "rim", "map" : "N/A" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr", "short" : "Radiation dose rate", "definition" : "Current ionizing radiation dose rate in the cabin.", "comment" : "Reflects cosmic ray/solar radiation environment; used to assess immediate radiation risk.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv", "short" : "Cumulative radiation", "definition" : "Cumulative radiation dose received during the mission.", "comment" : "Tracks long-term exposure against established limits.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel", "short" : "Radiation alert level", "definition" : "Indicates if radiation has crossed thresholds requiring crew action.", "comment" : "Values may include: 'nominal', 'elevated', 'storm'.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel", "min" : 0, "max" : "1" }, "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode", "short" : "Shielding mode", "definition" : "Current shielding configuration of the habitat.", "comment" : "Indicates if extra precautions are in effect due to radiation, such as 'standard', 'storm_shelter'.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode", "min" : 0, "max" : "1" }, "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency", "short" : "Shield efficiency", "definition" : "Percentage of radiation being attenuated by the spacecraft structure.", "comment" : "Optional metric that indicates how much radiation is being blocked.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency", "min" : 0, "max" : "1" }, "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.timestamp", "path" : "SpacecraftLifeSupportTelemetry.timestamp", "short" : "Measurement timestamp", "definition" : "The date and time when the environmental measurements were recorded.", "min" : 1, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.timestamp", "min" : 1, "max" : "1" }, "type" : [{ "code" : "dateTime" }] }, { "id" : "SpacecraftLifeSupportTelemetry.location", "path" : "SpacecraftLifeSupportTelemetry.location", "short" : "Measurement location", "definition" : "Reference to the specific module or compartment where these measurements were taken.", "comment" : "Important for spacecraft with multiple habitable volumes that may have different environmental parameters.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.location", "min" : 0, "max" : "1" }, "type" : [{ "code" : "Reference", "targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Location"] }] }, { "id" : "SpacecraftLifeSupportTelemetry.spacecraft", "path" : "SpacecraftLifeSupportTelemetry.spacecraft", "short" : "Spacecraft reference", "definition" : "Reference to the spacecraft or habitat module where these measurements were taken.", "min" : 0, "max" : "1", "base" : { "path" : "SpacecraftLifeSupportTelemetry.spacecraft", "min" : 0, "max" : "1" }, "type" : [{ "code" : "Reference", "targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Device"] }] }] }, "differential" : { "element" : [{ "id" : "SpacecraftLifeSupportTelemetry", "path" : "SpacecraftLifeSupportTelemetry", "short" : "Spacecraft Life Support Telemetry", "definition" : "A logical model representing Environmental Control and Life Support Systems (ECLSS) parameters monitored in spacecraft habitat modules." }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition", "short" : "Measurement of atmospheric gas composition", "definition" : "Measurement of atmospheric gas composition", "min" : 0, "max" : "1", "type" : [{ "code" : "BackboneElement" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.o2Percent", "short" : "Oxygen percentage", "definition" : "Oxygen concentration in cabin air, typically around 21%. Crucial for breathing; must stay in safe range to avoid hypoxia or fire risk.", "comment" : "Target is approximately 21%. Alert if below 19.5% (hypoxia risk) or above 23% (fire hazard).", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.co2Ppm", "short" : "Carbon dioxide level", "definition" : "Carbon dioxide concentration in cabin air, measured in parts per million (ppm).", "comment" : "Kept low (thousands of ppm) to prevent crew headaches, dizziness. Alerts if above allowable limit (NASA 3 mmHg ≈ 4000 ppm 1-hr).", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.n2Percent", "short" : "Nitrogen percentage", "definition" : "Nitrogen concentration in cabin air, typically around 78%.", "comment" : "Primary buffer gas to maintain pressure. Changes may indicate pressure adjustments.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.ch4Ppm", "short" : "Methane level", "definition" : "Methane concentration in cabin air, measured in parts per million (ppm).", "comment" : "Typically near 0. Monitored as part of atmospheric quality and as a flammability indicator.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2Ppm", "short" : "Hydrogen level", "definition" : "Hydrogen concentration in cabin air, measured in parts per million (ppm).", "comment" : "Should be approximately 0; any reading flags a leak or issue as hydrogen is flammable.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure", "path" : "SpacecraftLifeSupportTelemetry.atmosphericComposition.h2oPartialPressure", "short" : "Water vapor partial pressure", "definition" : "Water vapor partial pressure in cabin air, indicating absolute humidity.", "comment" : "Managed to prevent condensation; relates to approximately 40-60% relative humidity comfort range.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl", "path" : "SpacecraftLifeSupportTelemetry.climateControl", "short" : "Cabin pressure, temperature and humidity parameters", "definition" : "Cabin pressure, temperature and humidity parameters", "min" : 0, "max" : "1", "type" : [{ "code" : "BackboneElement" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinPressureKPa", "short" : "Cabin pressure", "definition" : "Total cabin atmospheric pressure, nominally around 101 kPa.", "comment" : "Vital for habitability; deviations can cause decompression risks.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinTemperatureC", "short" : "Cabin temperature", "definition" : "Cabin air temperature, kept in 18-27°C safe range.", "comment" : "Optimal temperature around 22°C for crew health and comfort.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinHumidityPercent", "short" : "Cabin humidity", "definition" : "Relative humidity in cabin air, as a percentage.", "comment" : "Controlled between 30-60% for comfort with limits at 25-75%. Prevents dry air or condensation issues.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC", "path" : "SpacecraftLifeSupportTelemetry.climateControl.cabinDewPointC", "short" : "Cabin dew point", "definition" : "Dew point temperature of cabin air in degrees Celsius.", "comment" : "Useful for monitoring moisture load and condensation risk. Derived from humidity and temperature.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants", "short" : "Trace contaminants and VOCs in cabin air", "definition" : "Trace contaminants and VOCs in cabin air", "min" : 0, "max" : "1", "type" : [{ "code" : "BackboneElement" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.coPpm", "short" : "Carbon monoxide level", "definition" : "Carbon monoxide concentration in cabin air, measured in parts per million (ppm).", "comment" : "Normally 0. Toxic gas from fire or malfunctions; triggers immediate alarm if detected.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.nh3Ppm", "short" : "Ammonia level", "definition" : "Ammonia concentration in cabin air, measured in parts per million (ppm).", "comment" : "Normally 0. Toxic/irritant gas that indicates coolant leaks or contamination.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.formaldehydePpm", "short" : "Formaldehyde level", "definition" : "Formaldehyde concentration in cabin air, measured in parts per million (ppm).", "comment" : "Target approximately 0; common off-gassed irritant. Tracked to ensure long-term exposure stays below SMAC limits.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm", "short" : "Other VOC measurements", "definition" : "Measurements of other volatile organic compounds in cabin air.", "comment" : "Used for specific volatile toxins (e.g., benzene, freon) to ensure air remains non-toxic.", "min" : 0, "max" : "*", "type" : [{ "code" : "BackboneElement" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.compound", "short" : "Type of volatile organic compound", "definition" : "Type of volatile organic compound", "min" : 1, "max" : "1", "type" : [{ "code" : "CodeableConcept" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration", "path" : "SpacecraftLifeSupportTelemetry.airborneContaminants.otherVocPpm.concentration", "short" : "Concentration in parts per million", "definition" : "Concentration in parts per million", "min" : 1, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem", "short" : "Status of air filtration and trace contaminant control systems", "definition" : "Status of air filtration and trace contaminant control systems", "min" : 0, "max" : "1", "type" : [{ "code" : "BackboneElement" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsStatus", "short" : "TCCS status", "definition" : "Operational status of the Trace Contaminant Control System.", "comment" : "Values may include: 'nominal', 'standby', 'off', 'fault'", "min" : 0, "max" : "1", "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.tccsFilterLoadPercent", "short" : "TCCS filter load", "definition" : "Trace contaminant filter utilization percentage.", "comment" : "High values warn of reduced ability to clean air (filter saturation).", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus", "path" : "SpacecraftLifeSupportTelemetry.airFiltrationSystem.airFilterStatus", "short" : "Air filter status", "definition" : "Condition of the cabin air filter.", "comment" : "Values may include: 'nominal', 'partial_clog', 'clogged'. Ensures ventilation efficacy; a clogged filter can lead to poor air quality.", "min" : 0, "max" : "1", "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring", "short" : "Particulate and microbial measurements", "definition" : "Particulate and microbial measurements", "min" : 0, "max" : "1", "type" : [{ "code" : "BackboneElement" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particulateMatterUgPerM3", "short" : "Particulate matter", "definition" : "Airborne particulate concentration, mass of dust/aerosol per volume.", "comment" : "Typically low in a clean cabin; rises if dust or smoke appears.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.particleCountPerCc", "short" : "Particle count", "definition" : "Number of particles per cubic centimeter above a certain size.", "comment" : "Complements mass concentration as another measure of air cleanliness.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.microbialAirCountCfuPerM3", "short" : "Airborne microbial count", "definition" : "Concentration of microbial colony-forming units in cabin air.", "comment" : "Indicates biological cleanliness of air. May be measured periodically rather than continuously.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2", "path" : "SpacecraftLifeSupportTelemetry.particulateMonitoring.surfaceMicrobeCountCfuPer100cm2", "short" : "Surface microbial count", "definition" : "Microbial load on surfaces from swab sampling.", "comment" : "High values could contribute to air contamination or crew infection risk.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment", "short" : "Radiation measurements and shielding status", "definition" : "Radiation measurements and shielding status", "min" : 0, "max" : "1", "type" : [{ "code" : "BackboneElement" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationDoseRateUSvPerHr", "short" : "Radiation dose rate", "definition" : "Current ionizing radiation dose rate in the cabin.", "comment" : "Reflects cosmic ray/solar radiation environment; used to assess immediate radiation risk.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationCumulativeMSv", "short" : "Cumulative radiation", "definition" : "Cumulative radiation dose received during the mission.", "comment" : "Tracks long-term exposure against established limits.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationAlertLevel", "short" : "Radiation alert level", "definition" : "Indicates if radiation has crossed thresholds requiring crew action.", "comment" : "Values may include: 'nominal', 'elevated', 'storm'.", "min" : 0, "max" : "1", "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.shieldingMode", "short" : "Shielding mode", "definition" : "Current shielding configuration of the habitat.", "comment" : "Indicates if extra precautions are in effect due to radiation, such as 'standard', 'storm_shelter'.", "min" : 0, "max" : "1", "type" : [{ "code" : "code" }] }, { "id" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency", "path" : "SpacecraftLifeSupportTelemetry.radiationEnvironment.radiationShieldEfficiency", "short" : "Shield efficiency", "definition" : "Percentage of radiation being attenuated by the spacecraft structure.", "comment" : "Optional metric that indicates how much radiation is being blocked.", "min" : 0, "max" : "1", "type" : [{ "code" : "decimal" }] }, { "id" : "SpacecraftLifeSupportTelemetry.timestamp", "path" : "SpacecraftLifeSupportTelemetry.timestamp", "short" : "Measurement timestamp", "definition" : "The date and time when the environmental measurements were recorded.", "min" : 1, "max" : "1", "type" : [{ "code" : "dateTime" }] }, { "id" : "SpacecraftLifeSupportTelemetry.location", "path" : "SpacecraftLifeSupportTelemetry.location", "short" : "Measurement location", "definition" : "Reference to the specific module or compartment where these measurements were taken.", "comment" : "Important for spacecraft with multiple habitable volumes that may have different environmental parameters.", "min" : 0, "max" : "1", "type" : [{ "code" : "Reference", "targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Location"] }] }, { "id" : "SpacecraftLifeSupportTelemetry.spacecraft", "path" : "SpacecraftLifeSupportTelemetry.spacecraft", "short" : "Spacecraft reference", "definition" : "Reference to the spacecraft or habitat module where these measurements were taken.", "min" : 0, "max" : "1", "type" : [{ "code" : "Reference", "targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Device"] }] }] } }