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SFS News: Phoenix Lander Update: No Saturday Night Maneuver

Posted by: Klaus Schmidt - Sun May 25, 2008 6:25 am
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SFS News: Phoenix Lander Update: No Saturday Night Maneuver 
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Post SFS News: Phoenix Lander Update: No Saturday Night Maneuver   Posted on: Sun May 25, 2008 6:25 am
(NASA) - Mission controllers for NASA's Phoenix Mars Lander decided Saturday afternoon, May 24, to forgo the second-to-last opportunity for adjusting the spacecraft's flight path.

Phoenix is so well on course for its Sunday-evening landing on an arctic Martian plain that the team decided it was not necessary to do a trajectory correction 21 hours before landing.

However, the team left open the option of a correction maneuver eight hours before landing, if warranted by updated navigational information expected in the intervening hours.

Sunday at 4:53 p.m. Pacific Time is the first possible time for confirmation that Phoenix has landed. The landing would have happened 15 minutes earlier on Mars, but the radio signals take 15 minutes to travel from Mars to Earth at the distance separating the two planets today.

The following was posted Saturday, May 24 at 1 p.m.PDT.

Highlights from Phoenix News Briefing at JPL -- Sat., May 24, Noon PDT

- A decision will be made this afternoon, Sat., May 24, about whether to perform one more trajectory correction maneuver later tonight.

- A dust cloud that NASA's Mars Reconnaissance Orbiter has been tracking is moving across the landing area today. It is not expected to pose any hazard to the landing.

- As of noon PDT today, Phoenix had 1.28 million miles left to travel out of its 422-million-mile flight from Earth to Mars.

You can also follow landing events on the Phoenix landing blog at www.nasa.gov/phoenixblog .

Feel free to discuss this article in this topic.


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Post    Posted on: Mon May 26, 2008 12:07 am
I have been watching NASA TV and Phoenix landed successfully a few minutes ago. They have telemetry from the surface.


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Post    Posted on: Mon May 26, 2008 1:57 am
The first images of the surface were just received on Earth. I don't see any ice or white stuff, althought the images are gray scale.


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Post    Posted on: Mon May 26, 2008 4:30 am
The first color pictures do not show any ice. Just dry red dust like everywhere else on Mars. But that is to be expected since this area is outside the visible summer polar cap.


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