Space

July 25, 2012

NASA Mars orbiter repositioned to phone home Mars landing

NASA’s Mars Odyssey spacecraft passes above Mars’ south pole in this artist’s concept illustration. The spacecraft has been orbiting Mars since October 24, 2001.

NASA’s Mars Odyssey spacecraft has successfully adjusted its orbital location to be in a better position to provide prompt confirmation of the August landing of the Curiosity rover.

The Mars Science Laboratory spacecraft carrying Curiosity can send limited information directly to Earth as it enters Mars’ atmosphere.

Before the landing, Earth will set below the Martian horizon from the descending spacecraft’s perspective, ending that direct route of communication. Odyssey will help to speed up the indirect communication process.

NASA reported during a July 16 news conference that Odyssey, which originally was planned to provide a near-real-time communication link with Curiosity, had entered safe mode July 11. This situation would have affected communication operations, but not the rover’s landing. Without a repositioning maneuver, Odyssey would have arrived over the landing area about two minutes after Curiosity landed.

A spacecraft thruster burn July 24 lasting about six seconds has nudged Odyssey about six minutes ahead in its orbit. Odyssey now is operating normally, and confirmation of Curiosity’s landing is expected to reach Earth at about 10:31 p.m., PDT, Aug. 5, as originally planned.

“Information we are receiving indicates the maneuver has been completed as planned,” said Gaylon McSmith, Mars Odyssey project manager at NASA’s Jet Propulsion Laboratory, in Pasadena,

Calif. “Odyssey has been working at Mars longer than any other spacecraft, so it is appropriate that it has a special role in supporting the newest arrival.”

Two other Mars orbiters, NASA’s Mars Reconnaissance Orbiter and the European Space Agency’s Mars Express, also will be in position to receive radio transmissions from MSL during its descent. However, they will be recording information for later playback. Only Odyssey can relay information immediately.

Odyssey arrived at Mars in 2001. In addition to its own scientific observations, it has served as a communications relay for NASA’s Spirit and Opportunity Mars rovers and the Phoenix lander. Spirit and Phoenix are no longer operational. Odyssey and MRO will provide communication relays for Curiosity during the rover’s two-year prime mission.

Odyssey and MSL, with its Curiosity rover, are managed by JPL for NASA’s Science Mission Directorate in Washington. Curiosity was designed, developed and assembled at JPL. The Odyssey spacecraft is operated by JPL and Lockheed Martin in Denver. Lockheed Martin Space Systems in Denver built Odyssey.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines August 18, 2014

News: U.S. mission in Iraq could expand, Pentagon official says - The mission for U.S. troops in Iraq to help Kurdish and Iraqi security forces in their fight against Islamic militants remains limited for now, but may expand after Iraqi leaders form a new government, a Pentagon spokesman said Aug. 19.   Business: Fuel deals top...
 
 

News Briefs August 20, 2014

Trials complete on fourth Coast Guard cutter Ingalls Shipbuilding in Pascagoula, Miss., has completed acceptance sea trials for the company’s fourth U.S. Coast Guard national security cutter, Hamilton. Jim French, Ingalls’ NSC program manager, tells The Mississippi Press) the Hamilton is scheduled to be delivered next month and commissioned on Dec. 6 in Charleston, South...
 
 
Army photograph by Sgt. Thomas Duval

Air Force, Army Aviation come together to complete vital mission in Egypt

Army photograph by Sgt. Thomas Duval Soldiers and airmen load a UH-60 Black Hawk into an Air Force C17 Globemaster III Aug. 19, 2104, at an old Israeli airstrip in the Sinai Peninsula of Egypt. The airstrip is now used by the M...
 

 
Air Force photograph by TSgt. Terri Praden

Joint effort validates ability to move Stryker vehicles via air

Air Force photograph by TSgt. Terri Praden An Army Stryker combat vehicle is guided into a C-17 Globemaster III during a 25th Infantry Division training exercise Aug. 13, 2014, at Joint Base Pearl Harbor-Hickam, Hawaii. The Str...
 
 
NASA image

Ozone-depleting compound persists, NASA research shows

NASA image Satellites observed the largest ozone hole over Antarctica in 2006. Purple and blue represent areas of low ozone concentrations in the atmosphere; yellow and red are areas of higher concentrations. NASA research show...
 
 

F-16V completes major capability milestone

The newest configuration of the F-16 Fighting Falcon, the F-16V, has reached a major capability milestone with the integration of a new Active Electronically Scanned Array radar. Completing this milestone on schedule demonstrates our ability to meet program commitments, said Roderick McLean, vice president and general manager of the F-16/F-22 Integrated Fighter Group at Lockheed...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>