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Bruce Jakosky MEPAG Meeting October 4, 2012

Update and Status Of The 2013 MAVEN Mission To Mars. Bruce Jakosky MEPAG Meeting October 4, 2012. NOTE ADDED BY JPL WEBMASTER: This content has not been approved or adopted by, NASA, JPL, or the California Institute of Technology.

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Bruce Jakosky MEPAG Meeting October 4, 2012

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  1. Update and Status Of The 2013 MAVEN Mission To Mars Bruce Jakosky MEPAG Meeting October 4, 2012 NOTE ADDED BY JPL WEBMASTER: This content has not been approved or adopted by, NASA, JPL, or the California Institute of Technology. This document is being made available for information purposes only, and any views and opinions expressed herein do not necessarily state or reflect those of NASA, JPL, or the California Institute of Technology.

  2. Summary Of Objectives And Status • MAVEN will help us to understand the role played by loss to space in evolution of the Martian atmosphere and volatiles, and to understand the nature of planetary habitability. • MAVEN Science Objectives: • Determine the structure and composition of the Martian upper atmosphere today (and the controlling processes) • Determine rates of loss of gas to space today (and the controlling processes) • Measure properties and processes that will allow us to determine the integrated loss to space through time • MAVEN Status: • On track, on schedule, on budget! • Spacecraft being integrated at Lockheed Martin in Colorado. • Instruments to be delivered this fall and winter. • Spacecraft-level testing in winter/spring, ship to Cape in August • Launch period 18 November – 7 December, 2013

  3. MAVEN Schedule SIR/ATLO Start 2 October 2012 • MAVEN mission: • One-Earth-year primary science mission • Extended mission limited by fuel for orbit control and reaction wheel desats • Best-case scenario – fuel for additional eight years

  4. The MAVEN Science Instruments (All Pictures Are Flight Hardware) Mass Spectrometry Instrument Particles and Fields Package Neutral Gas and Ion Mass Spectrometer; Paul Mahaffy, GSFC Solar Energetic Particles; Davin Larson, SSL SupraThermal and Thermal Ion Composition; Jim McFadden, SSL Solar Wind Electron Analyzer; David Mitchell, SSL Solar Wind Ion Analyzer; Jasper Halekas, SSL Remote-Sensing Package Imaging Ultraviolet Spectrometer; Nick Schneider, LASP Langmuir Probe and Waves; Bob Ergun, LASP Magnetometer; Jack Connerney, GSFC

  5. The MAVEN Spacecraft • Launch (Wet) Mass: 2550 kg max • Spacecraft Dry Mass: 903 kg max • Power: 1135 W at Mars Aphelion • 3-axis attitude control (wheel based) • Mono-propellant propulsion system • Single-fault tolerant during all critical events LPW (2) Electra (behind) SWEA SWIA “Gull-Wing” Solar Arrays SEP Fixed HGA MAG (2) SEP Articulated Payload Platform (IUVS/STATIC/NGIMS)

  6. MAVEN Spacecraft In ATLO Integration of core structure with fuel tank Recent lift onto rotation fixture, showing current ATLO configuration

  7. Participating Scientist Program • PS Program planned: • Anticipated to run from ~Nov. 2013 to April 2016 (launch through end of mission plus six months) • PSs will be added as full members of the science team • Foreign proposers welcome; no exchange of funds, but they still would become formal members of science team • Call for Participating Scientists: • To be issued as ROSES amendment via NSPIRES • Anticipated proposal due date: ~March 2013 • Proposal Information Package (PIP) in preparation • MAVEN Science Community Workshop • Intended to brief community on details of mission, instruments, science • Sunday, Dec. 2, at venue TBD in San Francisco • Agenda posted on MAVEN web site at http://lasp.colorado.edu/MAVEN

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