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Mars Exploration Program Analysis Group (MEPAG) Dr. Fuk Li March 3-4, 2009

Mars Exploration Program Analysis Group (MEPAG) Dr. Fuk Li March 3-4, 2009. Integrated Spacecraft. Cruise Stage. Descent Stage. Backshell. PICA Heatshield. Rover Chassis. Payload. CheMin. APXS. ChemCam. Mastcam. MAHLI. MARDI. REMS. RAD. SAM. F09 - Risk Reduction/Design Completion

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Mars Exploration Program Analysis Group (MEPAG) Dr. Fuk Li March 3-4, 2009

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  1. Mars Exploration Program Analysis Group(MEPAG) Dr. Fuk LiMarch 3-4, 2009

  2. Integrated Spacecraft

  3. Cruise Stage

  4. Descent Stage

  5. Backshell

  6. PICA Heatshield

  7. Rover Chassis

  8. Payload CheMin APXS ChemCam Mastcam MAHLI MARDI REMS RAD SAM

  9. F09 - Risk Reduction/Design Completion Retire high risk development issues Finish hardware builds where feasible FY10 - Delivery & Test Complete remaining hardware builds Conduct Rover System Environmental Test Program FY11 - Test & Margin Launch/Cruise ETP & KSC Operations Complete ATLO ~ 4 months prior to earliest launch date Top-Level Schedule Strategy L/C Stack & ETP Design/Problem Closeout Rover ETP KSC Ops Rover Integ. Launch Final Hardware Fab Actuators Sys V&V Avionics FY09 FY10 FY11

  10. ATLO Schedule Overview: FY’10 Oct ’09 Dec ’09 Feb ’10 Apr ’10 Jun ’10 Aug ’10 Oct ’10 System Test [RVR] System Test [RVR-STT] System Test [stacked] System Test [destacked-EDL] CPA CIPA CPAMs SA FY’09 Cruise Stage CS AVS & SA Rework HW Removal Mech I&T Mgn (0.5m) De-Stacked Vehicle Functional Testing Stack Vehicle Stacked Vehicle Functional Testing Margin (0.5m) L/C TVAC Elect I&T DMCA, DPA, TDS BUD DPAMs FY’09 Descent Stage DS AVS Rework HW Removal Descent Stage Rework Mgn (0.5m) Mech I&T Mgn (0.5m) Random Vibe Mgn (0.5m) Elect I&T RMCA, RPA, RPFA, UHF RCE, RPAMs RCE, RPFA RIPA FY’09 RVR AVS Rework & Assy Rover HW Removal TBD Early I&T Activities Mech Re-assembly Elect Re-integration Margin (1m) Funct Testing Mgn (0.5m) Surface STT Mgn (0.5m) Mobility Last Instrument RA RSM HGA Drill Chimera CBE Delivery Plan Double Shift Activity Using PARts RCE

  11. ATLO Schedule Overview: FY’11 Oct ’10 Dec ’10 Feb ’11 Apr ’11 Jun ’11 Aug ’11 Oct ’11 KSC System Test [stacked-STT] System Test [destacked] Launch Cruise Stage L/C TVAC Margin (0.5m) Destack Rover Mass Properties, EMC, Vibe De-Stacked Vehicle Functional Testing Margin (0.5m) Pack, Ship, Unpack Vehicle Closeout / Prep De-Stacked Vehicle Functional Testing MMRTG Electrical Checkout Margin (0.5m) Stack Vehicle Vehicle Fueling Final MP Measurements Margin (0.5m) LV Encapsulation Descent Stage Schedule Slack Rover Skeleton KSC Ops CBE Delivery Plan Double Shift Activity Using PARts RCE

  12. MAVEN Status and Plans Mission Objectives • Determine the role that loss of volatiles from the Mars atmosphere to space has played through time, allowing us to understand the histories of Mars’ atmosphere and climate, liquid water, and planetary habitability • Determine the current state of the upper atmosphere, ionosphere, and interactions with the solar wind • Determine the current rates of escape of neutrals and ions to space and the processes controlling them • Determine the ratios of stable isotopes that will tell Mars’ history of loss through time • Mission Overview • • Obtain detailed measurements of the upper atmosphere, ionosphere, planetary corona, solar wind, solar EUV and SEPs over a 1-Earth-year period, to define the interactions between the Sun and Mars • • Operate 8 instruments for previously unobtainable science results: • Particles and Fields Package (6 instruments): • SWEA - Solar Wind Electron Analyzer • SWIA - Solar Wind Ion Analyzer • STATIC - Suprathermal and Thermal Ion Composition • SEP - Solar Energetic Particle • LPW - Langmuir Probe and Waves (with EUV detectors) • MAG - Magnetometer • IUVS - Imaging Ultraviolet Spectrometer • NGIMS - Neutral Gas and Ion Mass Spectrometer • Fly 75°-inclination, 4.5-hour-period, 150-km-periapsis-altitude science orbit • Perform five 5-day “deep dip” campaigns to altitudes near 125 km during the 1-year mission • Status and Plans • • Oct 2008 – Risk Reduction Phase start • Implementing several risk-reduction activities, including: • STATIC Engineering Test Unit • Periapsis Timing Estimator using MRO test bed • C&DH software &instrument hardware interface and function verification using MRO test env • Preparing for System Requirements Review • Conducting program-directed relay-comm studies • Aug 2009 – System Requirements Review • Oct 2009 – Phase B start Launch •To be launched from KSC on an EELV between November 18 and December 7, 2013 • Mars Orbit Insertion on September 16, 2014 (for 11/18 launch) Websitehttp://lasp.colorado.edu/MAVEN

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