App G 04_Venus_Climate_Mission.pdf

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1、Venus Climate MissionPlanetary Science Decadal Survey  Mission Concept StudyVCM Science ObjectivesMissionConceptStudyReporttotheVCM Science Payload•CharacterizethestrongCOgreenhouseNRCDecadalSurveyInnerPlanetsPanel•CarrierSpacecraft2atmosphereofVenus,includingvariability.Ju

2、ne,2010-VenusMonitoringCameraVis-IR•Characterizethedynamicsandvariability•Gondola/BalloonSystemofVenus’ssuperrotatingatmosphere.ConceptMaturityLevel:4-NeutralMassSpectrometer(NMS)•Characterizesurface/atmospherechemicalCostRange:LowEndFlagship-TunableLaserSpectrometer(TLS)ex

3、changeintheloweratmosphere.LaunchDate:November2,2021-AtmosphericStructureInstrumentation(ASI)•SearchforatmosphericevidenceofclimateScienceCampaign:-NephelometerchangeonVenus.April7,2022-April28,2022-NetFluxRadiometer(NFR)•DeterminetheoriginofVenus’satmosphereLaunchMass:3,94

4、8kg•Mini-ProbeandthesourcesandsinksdrivingevolutionLaunchVehicle:AtlasV551-NMS;NFR;ASIoftheatmosphere.•DropSondes,•UnderstandimplicationsofVenus’sclimate-ASI;NFRevolutionforthelong-termfateofEarth.Carrier SpacecraftFunction:DeliveranddeployEntryFlightSystem;orbitVenusEntry 

5、Flight SystemascommunicationrelayforGondola/BalloonsystemwithGondola/BalloonSystem,Mini-ProbeandDropSondesPower:5m²solarpanelsAttitudeControl:3-axisstabilized(SpinupforreleaseoftheEFS)DrogueParachuteTelecom:1.7mdia.HGA;two-wayS-bandcomm.withgondola;two-wayKa-bandcomm.withEa

6、rthScienceDataReturn:14GbfromCarrierSpacecraftCameraBackshellplus142MbfromGondola/BalloonSystem;Mini-ProbeandDropSondesMainParachuteBalloonMini-ProbeGondolaFunction:45minutedescentfrom55.5kmtosurfaceGondola/Balloon Power:DistributedrechargeablePolymerLithium-ionbatteriesSys

7、temDropSondeDropSondeTelecom:1wayS-bandtogondolaScienceDataReturn:5MbFunction:21daysciencecampaignDesign:44cmdia.,66cmtalltitaniumpressurevessel,passiveat55.5kmfloataltitudeHeliumTanksthermalcontrolPower:Lithium-thionylchloride(Li-SOCl2)primarybatteryDropSondes(2)Telecom:Tw

8、owayS-band(plusMini-ProbeFunction:45minutedescentfrom55.5kmtosurfaceDoppler)toCarr