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Mon, Sep 17, 2012

Next Mars Mission Enters Final Phase Before Launch

MAVEN To Be The First Mission To Study The Martian Atmosphere

NASA's Mars Atmosphere And Volatile EvolutioN (MAVEN) mission has passed a critical milestone, Key Decision Point-D or KDP-D. The project is officially authorized to transition into the next phase of the mission, which is system delivery, integration and test, and launch. "The spacecraft and instruments are all coming together at this point," said Bruce Jakosky from University of Colorado, the MAVEN principal investigator. "Although we're focused on getting everything ready for launch right now, we aren't losing sight of our ultimate objective – getting to Mars and making the science measurements."

MAVEN will be the first mission devoted to understanding the Martian upper atmosphere. The goal of MAVEN is to determine the role that loss of atmospheric gas to space played in changing the Martian climate through time.

The key decision meeting was held at NASA Headquarters in Washington on September 10 and chaired by NASA's Science Mission Directorate. "I'm incredibly proud of how this team continues to meet every major milestone on schedule on its journey to Mars," said David Mitchell, MAVEN project manager at NASA's Goddard Space Flight Center in Greenbelt, MD. "Being ready for the start of system level integration and test is critically important to ultimately being ready for launch on November 18, 2013."

KDP-D occurs after the project has completed a series of independent reviews which cover not only technical health of the project but also programmatic health (schedule and cost). KDP-D represents the official transition from Phase C (development stage) to Phase D in the mission life cycle. During Phase D, the spacecraft bus is completed, the science instruments are integrated into the spacecraft, spacecraft testing occurs, everything ships to Kennedy Space Center for integration into the Atlas-V rocket, and the MAVEN mission launches (late next year).

The next major review for the MAVEN team is the Mission Operations Review in November. This review assesses the project's operational readiness and its progress towards launch. The project will continue to work with its partners to deliver all instruments in the next four months.

The MAVEN spacecraft will carry three instrument suites. The Particles and Fields Package, built by the University of California at Berkeley with some instrument elements from CU/LASP and NASA Goddard, contains six instruments that will characterize the solar wind and the ionosphere of the planet. The Remote Sensing Package, built by CU/LASP, will determine global characteristics of the upper atmosphere and ionosphere. The Neutral Gas and Ion Mass Spectrometer, provided by NASA Goddard, will measure the composition and isotopes of neutrals and ions.

MAVEN will launch during a 20-day period from November to December, 2013.  It will go into orbit around Mars in September 2014, and, after a one-month check-out period, will make measurements from orbit for one Earth year.

(Images provided by NASA)

FMI: www.nasa.gov/maven

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