network studies of mars climate and interior
DESCRIPTION
NETwork studies of MARS climate and interior. A.V.Rodin, V.M.Linkin, A.N.Lipatov, V.N.Zharkov, T.V.Gudkova, R.O.Kuzmin. Scientific priorities of Mars exploration: what’s done?. Climate dynamics (atmospheric temperature, water, dust, clouds) Surface and subsurface volatiles inventory - PowerPoint PPT PresentationTRANSCRIPT
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NETwork studies of MARS climate and interior
A.V.Rodin, V.M.Linkin, A.N.Lipatov, V.N.Zharkov, T.V.Gudkova, R.O.Kuzmin
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Scientific priorities of Mars exploration: what’s done?
• Climate dynamics (atmospheric temperature, water, dust, clouds)
• Surface and subsurface volatiles inventory
• Paleoclimate records in surface composition and morphology
• Extra rare constituents (methane)
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Future plans
• NASA: Mars Science Laboratory (rover), MAVEN (atmosphere sample analysis). Soil sample return mission in a foreseeable perspective.
• ESA: ExoMars – rover with drilling capabilities.
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What’s to be done by orbiters
• Wide-field hyperspectral monitoring (analog of VEX/VIRTIS)
• High resolution spectroscopy in IR and/or microwave ranges for isotopic analysis and Doppler measurements
(present in NASA and ESA programs)
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What’s to be done by landers
• Mars internal structure and composition - a network of seismometers
• Meteo network
• Surface thermal & electric conductivity – penetrating probes (depth 10-20 cm )
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How many stations do we need in a network?
• According to Kotelnikov theorem, 4 seismic and 6 meteo stations should be placed in each latitude zoneWave 3 feature in water vapor (model)
0
180
10
20
30
40
50
60
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Minimalistic concept:2 “light” stations in the polar regions 2 “heavy” stations in tropics or midlatitudes
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MEX/OMEGA 1.5 m indexMGCM
SH NH
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Technical heritage:Netlander
(ESA)MET-NET (IKI & FMI)
microlanders
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Lavochkin’s view on mission scenario
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Wind Sensor
Thermocouples
100 cmSoil ProbeTemperature,Humidity
HumidityImager &opt. sens.
Model science payload
MET-Boom
• Descent phase instr. package
P, T, Acc• Surface phase instruments:
• Seismic sensor• Pancam • Wind speed
sensor• Pressure• Atm. temperature• Atm. humidity• Soil temperature• Soil humidity• Lidar
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Thermal & electric conductivity probe(Phoenix experience)
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seismic measurements: high demands on sensitivity
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FirstIBU
Inflatable heat shield
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MainIBU
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Mass Budget
System: kg kg
Entry, Descent and 7,9Landing System Lander body 4,9 Equipment module 4Landing module 8,9
Total Entry Mass 16,8
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Thermal protectionsystem tests
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MetNet Flight Test
Испытания ТЗП
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2007
Inflatable heatshield tested usingVolna launcher forsuborbital flight
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Resume
• A network mission to Mars with small stations bearing meteo package, seismic sensors and optional instruments may get a high priority for the Russian national space program.
• Rich technical heritage and connection with European and US groups involved in similar network missions leaves a hope that it will be implemented shortly