NASA Spacecraft Set to Enter Mars Orbit

Washington, September 18 (QNA) – NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft is nearing its scheduled September 21 insertion into Martian orbit after completing a 10-month interplanetary journey of 442 million miles.

Flight Controllers at Lockheed Martin Space Systems in Littleton, Colorado, will be responsible for the functioning and safety of the spacecraft. The spacecraft’s mission timeline will place the spacecraft in orbit at approximately 9:50 pm (EDT), NASA said.

MAVEN Project Manager at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, David Mitchell said, “The team, the flight system, and all ground assets are ready for Mars orbit insertion.”
The orbit-insertion manoeuvre will begin with the brief firing of six small thruster engines to steady the spacecraft. The engines will ignite and burn for 33 minutes to slow the craft, allowing it to be pulled into an elliptical orbit with a period of 35 hours.

After the orbit insertion, MAVEN will begin a six-week commissioning phase that includes manoeuvring the spacecraft into its final orbit and testing its instruments and science-mapping commands.

MAVEN will then begin its one-Earth-year primary mission to take measurements of the composition, structure and escape of gases in Mars’ upper atmosphere and its interaction with the sun and solar wind.

“The MAVEN science mission focuses on answering questions about where did the water that was present on early Mars go, about where did the carbon dioxide go,” said Bruce Jakosky, MAVEN principal investigator from the University of Colorado, Boulder’s Laboratory for Atmospheric and Space Physics. “These are important questions for understanding the history of Mars, its climate, and its potential to support at least microbial life.”
MAVEN, launched November 18, 2013, from Cape Canaveral, Florida, carrying three instrument packages, is the first spacecraft dedicated to exploring the upper atmosphere of Mars. (QNA)

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