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Opportunity Boots Up Okay After Flight Software Upgrade

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Pasadena - Apr 15, 2004
Waking up to the Ramones' "Teenage Lobotomy," Opportunity began operating with new flight software on its 79th sol on Mars, which ended at 12:16 p.m. PDT on April 14. Yestersol, the rover took daytime readings with its Moessbauer spectrometer on "Jeff's Choice" -- a soil target in the tailings of the trench that the vehicle dug on Sol 73.

This sol, the rover performed a free-air integration of its alpha particle X-ray spectrometer. This procedure measures the effect of the Moessbauer's radiation source on the alpha particle X-ray spectrometer's sensor, allowing the science team to subtract out the Moessbauer influence for an accurate calibration.

In the coming sols, Opportunity will examine the trench with its microscopic imager and alpha particle X-ray spectrometer.

The Spirit Of Route 66
Spirit began Sol 99, which ended at 11:55 p.m. PDT on April 13, 2004, by doing a systematic ground survey with the miniature thermal emission spectrometer.

After that, the rover completed a six-position brush mosaic on the rock "Route 66" with the rock abrasion tool. Once the brushing was complete, Spirit analyzed the area with the microscopic imager and Moessbauer spectrometer.

The afternoon science for the sol included imaging of rocks called "Back Lot" and "Cameo" with the panoramic camera and the miniature thermal emission spectrometer. Spirit took a short nap and woke up for the afternoon Odyssey pass.

During the martian night, Spirit changed from using the Moessbauer spectrometer to using the alpha particle X-ray spectrometer.

Sol 100, which will end at 12:35 a.m. PDT, April 15, 2004, will be a sol full of roving as Spirit continues toward the "Columbia Hills."

Lion King Panorama Draft
This approximate true-color panorama, dubbed "Lion King," shows "Eagle Crater" and the surrounding plains of Meridiani Planum. It was obtained by the Mars Exploration Rover Opportunity's panoramic camera on sols 58 and 60 using infrared (750-nanometer), green (530 nanometer) and blue (430-nanometer) filters.

This is the largest panorama obtained yet by either rover. It was taken in eight segments using six filters per segment, for a total of 558 images and more than 75 megabytes of data. Additional lower elevation tiers were added to ensure that the entire crater was covered in the mosaic.

This panorama depicts a story of exploration including the rover's lander, a thorough examination of the outcrop, a study of the soils at the near-side of the lander, a successful exit from Eagle Crater and finally the rover's next desination, the large crater dubbed "Endurance."

Related Links
Mars Rovers at JPL
Mars Rovers at Cornell
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Spirit Reboots With New Software
Pasadena - Apr 14, 2004
On Sol 98, which ended at 10:36 p.m. PST on April 12, Spirit woke up to the song "Where Is My Mind?" by The Pixies in honor of its software transplant. The good news is that Spirit's "mind" is updated and operating as expected.

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