Missoula Crater In Sight

MARSDAILY

a quick pit stop at Missoula Crater ahead of the long drive to Columbia Hills

Pasadena - Apr 19, 2004
Spirit had a busy weekend, culminating with a 75-meter (246-feet) drive toward "Missoula Crater" on sol 103, which ended at 2:33 a.m. PST on April 18. The sol before the drive, Sol 102, which ended at 1:54 a.m. on April 17, was an easier day for Spirit. Its main objectives were to use the panoramic camera and mini thermal emission spectrometer to acquire photometric and atmospheric measurements.

Before beginning the drive on sol 103, Spirit took panoramic camera images to help planners localize the rover during the long traverse. It then used the panoramic camera and mini thermal emission spectrometer to take a look back at the wheel tracks. Once this information was onboard, the rover began to drive.

Rover controllers planned the first 37 meters (121.4 feet) of the drive, but Spirit used the updated autonomous navigation software to see it through the remaining 38 meters (124.7 feet). Between the two drives, Sprit imaged its surroundings with the panoramic and navigation cameras for context.

At the end of the 75-meter (246-feet) drive, Spirit rested a mere 40 meters (131.2 feet) from its destination at the rim of "Missoula Crater." From that spot, it took mini thermal emission spectrometer observations of the sky and ground along with panoramic and navigation camera images to plan the next drive.

Sol 104, which ended at 3:13 a.m. PST on April 19, was a remote sensing day for Spirit. It included a search for dust devils and panoramic camera imaging of Mars' moon Phobos as it transits across the sun and sets.

On the Way to 'Fram Crater'
Opportunity began sol 84, which ended at 3:34 p.m. PST on April 19, with some remote sensing observations and analysis with the microscopic imager and Moessbauer spectrometer.

At 13:13 Mars Local Solar time, Opportunity began a 25-meter (82 feet) drive toward "Fram Crater," taking images of its surroundings on the way. At the conclusion of the drive the rover acquired more remote sensing.

Opportunity will spend sol 85, which ends at 4:13 p.m. PST on April 20, 2004, using the instruments on its instrument deployment device to investigate a rock target at Fram Crater.

MARSDAILY

Opportunity Dashes 140 Meters

Pasadena - Apr 16, 2004
Three days after switching to new software with mobility-enhancing features, NASA's Opportunity shattered the record for a single day's driving on Mars. The rover covered 140.9 maters (462 feet) during its 82nd sol on Mars, ending at 2:15 p.m. PDT, Saturday, May 17. That is about 40 meters farther than either the best previous one-day drive, by Opportunity two weeks ago, or the total distance covered by NASA's smaller Sojourner rover during its entire three-month mission in 1997.

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