the 2013 maven mission to mars -...
TRANSCRIPT
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Bruce JakoskyMAVEN Principal Investigator
University of Colorado
The 2013 MAVEN Mission To Mars
Monday, June 17, 2013
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“Mars Atmosphere and Volatile EvolutioN” Mission
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Summary of MAVEN Status• We’ve been developing MAVEN since 2003; now 165 days to launch!• All eight eight science instruments are on the spacecraft• Spacecraft assembly is complete and its in final stages of environmental
testing• Launch period is 18 November – 7 December, 2013• Arrival at Mars in September, 2014• One-Earth-year primary science mission
Technical development is on track, we are on schedule and on budget!
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Overarching Question: Did Mars Ever Have Life?
Mars appears to meet or have met all of the environmental requirements for the occurrence of life:
• Liquid water• Access to the biogenic elements• Source of energy to drive metabolism
Did Mars ever have life? How did any life interact with its planetary environment? How has the habitability of Mars changed over time?
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Where Did The Water Go?Where Did The CO2 Go?
Into the crust Lost to space
Carbonate deposits in a Martian meteorite
Escaping ions detected from Mars Express
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What Will MAVEN Do? (1 of 2)
Turn-off of the Martian magnetic field allowed turn-on of solar-EUV and solar-wind stripping of the atmosphere approximately 3.7 billion years ago, resulting in the present thin, cold atmosphere.
Mars’ atmosphere is cold and dry today, but there was once liquid water flowing over the surface.
Where did the water and early atmosphere go?• H2O and CO2 can go into the crust or be lost to space.• MAVEN will focus on volatile loss to space.
Ancient Valleys
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What Will MAVEN Do? (2 of 2)
• Determine the structure and composition of the Martian upper atmosphere today
• Determine rates of loss of gas to space today• Measure properties and processes that will allow us to determine
the integrated loss to space through time
MAVEN will answer questions about the history of Martian volatiles and atmosphere and help us to understand the nature of planetary habitability.
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MAVEN Will Measure the Energetic Drivers, Reservoirs, and Escape Rates
• MAVEN will determine the present state of the upper atmosphere and today’s rates of loss to space.
• Measurements will allow determination of the net integrated loss to space through time.
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The MAVEN Science Instruments
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
Langmuir Probe and Waves;Bob Ergun, LASP
Magnetometer;Jack Connerney, GSFC
Neutral Gas and IonMass Spectrometer;Paul Mahaffy, GSFC
Imaging UltravioletSpectrometer; NickSchneider, LASP
Mass Spectrometry Instrument Particles and Fields Package
Remote-Sensing Package
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The MAVEN Spacecraft• 3-axis attitude control (wheel based)• Mono-propellant propulsion system• Single-fault tolerant during all critical events• Launch (Wet) Mass: 2550 kg max• Spacecraft Dry Mass: 903 kg max • 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
SEP
Electra (behind)
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The MAVEN Spacecraft
Same length as a school bus – wingtip-to-wingtip length of 37ft.
Same weight fully loaded as a GMC Yukon – 2550 kg.
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20-Day Launch Period: November 18 –
December 7, 2013
Ten-Month Ballistic Cruise to Mars
Orbit Insertion:22 Sept 2014
One Year of Science Operations
MAVEN Mission Architecture
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MAVEN Orbit and Primary Science Mission
• Elliptical orbit to provide coverage of all altitudes• The orbit precesses in both latitude and local solar time• One-Earth-year mission allows thorough coverage of near-Mars space
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MAVEN Makes Measurements Throughout The Orbit
IUVSCoronal Scans
IUVSCoronal Scans
STATICMonitor Escape
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MAVEN’s Timing in the Solar Cycle
MAVEN Primary Mission
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Proposal, Site Visit, and Presentation at NASA HQ
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Reviews Are Held Only On Days That Contain The Word “Day”
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MAVEN Spacecraft Early In “ATLO”
Integration of core structure with fuel tank
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Nearly Complete Spacecraft In Lockheed Martin High-Bay Cleanroom
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Attaching the Solar Panels
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Observatory in ATLO
MAVEN spacecraft with solar arrays deployed
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Observatory in Environmental Testing
MAVEN in Acoustics MAVEN on Shaker – Sine Vibration
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Observatory in Environmental Testing
MAVEN in EMI/EMC Test Configuration
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The MAVEN Team Tours The Launch Facilities
Atlas V Horizontal Processing Facility
Launch Pad
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MAVEN’s Atlas V - 401 in Fabrication
Atlas 1st Stage
Atlas Centaur 2nd Stage
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Mockup of MAVEN on the Launch Pad
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How Do I Spend My Time As P.I.?
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How Do I Spend My Time As P.I.?
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How Do I Spend My Time As P.I.?
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How Do I Spend My Time As P.I.?
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How Do I Spend My Time As P.I.?
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How Do I Spend My Time As P.I.?
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How Do I Spend My Time As P.I.?
Monday, June 17, 2013
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How Do I Spend My Time As P.I.?
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Mission Operations at Lockheed Martin, Science Operations at LASP
• MAVEN utilizes extensive operational facilities at LM (MOC) and LASP (SOC).
• Both LM and LASP have very experienced operations teams and well-developed procedures.
• All operational phases of the MAVEN mission have been carried out at Mars on previous missions by the MAVEN operations team.
Lockheed Martin Mission Support Area
LASP Mission Operations Center
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Launch Year
MRO
Mars ExpressCoop
Odyssey
MER
2013 2016 2018 & Beyond20112009Operational / Recent
MAVEN
Phoenix Mars Science Lab
NASA’s Mars Exploration Program
MSL - 2020
InSight
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MAVEN Will Continue The Successful “Follow The Water” Theme.
MGS, MPF, ODY, MER, MRO, MEx, PHX, upcoming MSL, are focused largely on the history of the surface. MAVEN’s comprehensive approach will provide the history of the atmosphere as the necessary other half of the story.
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MAVEN Schedule
• MAVEN concept developed starting in late 2003• Proposal submitted for Mars Scout program in 2006• Selected for competitive Phase A, early 2007• Selected for development for flight, Sept. 2008• MAVEN Confirmed for development, October 2010• As of today, launch is 5 months 12 days away!
6 June 2013
SIR/ATLO Start
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MAVEN is on track in its development, on schedule, and on budget.
Follow us at: MAVEN web sites: http://nasa.gov/MAVEN
http://lasp.colorado.edu/maven On Facebook and Twitter: At “MAVEN2MARS”
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