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  Mars Exploration Rovers: Spirit and Opportunity (Page 11)

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Author Topic:   Mars Exploration Rovers: Spirit and Opportunity
Lunar rock nut
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Posts: 680
From: Oklahoma city, Oklahoma U.S.A.
Registered: Feb 2007

posted 07-25-2007 09:23 AM     Click Here to See the Profile for Lunar rock nut   Click Here to Email Lunar rock nut     Edit/Delete Message   Reply w/Quote
Today's Astronomy Picture of the Day has an excellent five frame picture of how the sunlight has has dropped at Victoria crater over a thirty day period.

Terry

Blackarrow
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Posts: 2024
From: Belfast, United Kingdom
Registered: Feb 2002

posted 08-12-2007 03:27 PM     Click Here to See the Profile for Blackarrow     Edit/Delete Message   Reply w/Quote
Any sign of the dust-storm abating? Does anyone have any idea when (or if?) "Opportunity" will begin to drive down into Victoria Crater? I'm getting sick of seeing endless repititious images of the sun or the "sundial." Yes, yes, I know that without enough sunlight falling on the solar panels the electrical power is low, but knowing this doesn't make the delay any less frustrating.

Robert Pearlman
Editor

Posts: 27328
From: Houston, TX
Registered: Nov 1999

posted 08-16-2007 05:42 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
SPACE.com: Storm Subsides: Mars Rovers Now Battle Fallout
Mars' globe-engulfing dust storm has died down during the past several weeks, but the two robotic rovers on its surface now face the fallout of dust from the thin atmosphere.

Conditions were so bad in early August that just before the launch of the Mars-bound Phoenix spacecraft, rover scientist Mark Lemmon feared the demise of the Opportunity rover.

Lunar rock nut
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Posts: 680
From: Oklahoma city, Oklahoma U.S.A.
Registered: Feb 2007

posted 08-24-2007 01:29 PM     Click Here to See the Profile for Lunar rock nut   Click Here to Email Lunar rock nut     Edit/Delete Message   Reply w/Quote
OPPORTUNITY UPDATE: Brightening Skies Bolster Opportunity - sol 1256-1265, Aug 23, 2007:

Opportunity is healthy and remains perched near the rim of "Victoria Crater." The rover was on a low-power schedule that alternated between a 3-sol plan and a 4-sol plan.

Tau (atmospheric opacity) has begun to stabilize this week at around 3.7, resulting in solar array energy between 230-240 watt hours. Therefore in the upcoming week, the team will return to nominal planning.

The rover conducted a lot of what engineers call "runout science." This includes: panoramic camera wide-range tau measurements, navigation camera tau measurements, navigation camera cloud measurements, panoramic camera soria (imaging a rough, rocky area near the rover), front hazard avoidance camera images, rear hazard avoidance camera images, navigation camera images, panoramic camera sky spot, panoramic camera dust monitoring on the mast, miniature thermal emission spectrometer target calibration and panoramic camera high-sun surveys.

Lunar rock nut
Member

Posts: 680
From: Oklahoma city, Oklahoma U.S.A.
Registered: Feb 2007

posted 09-12-2007 10:13 AM     Click Here to See the Profile for Lunar rock nut   Click Here to Email Lunar rock nut     Edit/Delete Message   Reply w/Quote
(It's Alive!) Opportunity Update: Mars.

Terry


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