Introduction to MAVEN Dave Brain LASP / University of Colorado On behalf of the MAVEN team.

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Presentation transcript:

Introduction to MAVEN Dave Brain LASP / University of Colorado On behalf of the MAVEN team

Mars was Once Wet Water was stable in liquid form at the surface for long periods of time

Two Mysteries in One

Up Down Where Did the Atmosphere Go?

What Causes “Up”s? The Sun and Solar Wind

MAVEN Objectives Escape of Atmospheric Gases to Space: Measure drivers, reservoirs, escape Assess atmospheric loss over time

Neutrals and Ions Plus Evolution IUVS NGIMS Ion-Related Properties and Processes LPW MAGSTATIC Sun, Solar Wind, Solar Storms SWIAEUV SWEA SEP MAVEN Science Instruments

MAVEN Instruments AcronymInstrument NameInstrument LeadBrief Description EUVExtreme UltraViolet Sensor Frank Eparvier CU / LASP 3 channel EUV photometer IUVSImaging Ultraviolet Spectrograph Nick Schneider CU / LASP FUV and MUV measurements in 4 observing modes LPWLangmuir Probe and Waves Bob Ergun CU / LASP Current-Voltage sweeps and E-field power MAGMagnetometerJack Connerney NASA GSFC High time resolution vector B-field NGIMSNeutral Gas and Ion Mass Spectrometer Paul Mahaffy NASA GSFC Closed source and open source neutral and ion mass spec SEPSolar Energetic Particle Instrument Davin Larsen UC Berkeley / SSL High energy electrons and ions w/ energy & 2 directions STATICSuperThermal and Thermal Ion Composition Jim McFadden UC Berkeley / SSL Planetary (and SW) ions with mass, energy, and direction SWEASolar Wind Electron Analyzer Dave Mitchell UC Berkeley / SSL Superthermal electrons with energy and direction SWIASolar Wind Ion AnalyzerJasper Halekas U. Iowa Superthermal ions with energy and direction

The MAVEN Spacecraft Launch (Wet) Mass: 2455 kg at launch Spacecraft Dry Mass: 810 kg at launch Power: 1135 W at Mars Aphelion MAG (2) “Gull-Wing” Solar Arrays LPW (2) SWEA Articulated Payload Platform (IUVS/STATIC/NGIMS) Fixed HGA SWIA SEP Electra (behind)

Deep Dips Cover All Altitudes One Year of Science Operations MAVEN Mission Architecture Orbit shown to scale Orbit Precession Provides Coverage Launch on 18 Nov 2013 Orbit Insertion on 21 Sept 2014

MAVEN Team Members in Attendance Dave Brain – Co-Investigator (Ion Escape / Particles and Fields) Alex De Wolfe – MAVEN Science Data Center Meredith Elrod – NGIMS Team Nick Schneider – IUVS Instrument Lead Rich Zurek – Co-Investigator (Atmospheric Advisory Group)

Cross-Platform Opportunities MAVEN – MEX Escaping plasma, magnetosphere, ionosphere, UV observations MAVEN – Curiosity Radiation environment from above and below the atmosphere MAVEN – MRO Thermospheric densities and variability MAVEN – MOM Exospheric structure and variability ??? (This workshop!)