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Cleaning Event Gives Opportunity Renewed Energy
Cleaning Event Gives Opportunity Renewed Energy
31 Jul 2006
(Source: NASA/JPL-Caltech)

Opportunity spent five sols this week at a target called "Joseph McCoy." At this location, the rover acquired about 41 hours of M?ssbauer spectrometer integration, almost seven hours of alpha particle X-ray spectrometer integration, and a mosaic from the microscopic imager. Then Opportunity rolled back, scuffed the soil, and drove 55 meters (180 feet) closer to "Beagle Crater." The scuff helps scientists and engineers analyze how the wheels interact with the soil. After the most recent drive, Opportunity is sitting about 25 meters (82 feet) from the rim of Beagle Crater.

Over the past 50 sols the team noticed a gradual cleaning of the solar panels similar to a more-sudden cleaning event experienced one Mars-year ago in "Endurance Crater." Removal of some of the accumulated dust on the panels allows greater production of electricity from sunlight. Opportunity's solar panels are now producing just over 500 watt-hours per sol.

Sol-by-sol summaries:

Sol 886 (June 22, 2006): Opportunity took microscopic images and an alpha particle X-ray spectrometer reading of the target Joseph McCoy. During the afternoon communication-relay session with NASA's Mars Odyssey orbiter, the rover observed the sky and ground with the miniature thermal emission spectrometer to profile temperatures of the atmosphere and surface. This sol also included a 13-filter panoramic image of a feature called "Jesse Chisholm" and an abbreviated morning observation of the sky and ground with the miniature thermal emission spectrometer.

Sol 887: Opportunity took a M?ssbauer reading of Joseph McCoy and a panoramic camera image of "Sand Sheet" (shot to the south to determine a path to Beagle). In the morning, the rover looked for clouds and made atmospheric measurements.

Sol 888: Opportunity continued the M?ssbauer examination of Joseph McCoy and conducted a miniature thermal emission spectrometer stare at Jesse Chisholm. The rover checked for clouds and assessed a temperature profile of the atmosphere.

Sol 889: The rover restarted the M?ssbauer spectrometer, used the miniature thermal emission spectrometer for a seven-point sky and ground observation, and checked for clouds with the navigation camera.

Sol 890: Opportunity restarted the M?ssbauer spectrometer and did two stares at soil with the miniature thermal emission spectrometer. The rover then stopped the M?ssbauer observation and changed tools to the alpha particle X-ray spectrometer before the Odyssey pass. The rover began collecting X-ray spectrometer data on a target called "Ignatius."

Sol 891: Opportunity rolled back 1.5 meters (5 feet) and scuffed soil with its left-front wheel. The rover then conducted mid-drive imaging, completing a 13-filter panoramic camera image of the robotic arm's work area and the scuff. The rover drove 55 meters (180 feet) towards Beagle Crater. Post-drive imaging included a panoramic camera mosaic and navigation camera image mosaics in the forward and rear directions.

Sol 892 (July 28, 2006): Plans call for Opportunity to aim the navigation camera in the direction of the calibration target and take pictures of the sky, checking for clouds. Also, the rover is to use the miniature thermal emission spectrometer to profile near-surface and atmospheric temperatures.

Opportunity's total odometry as of sol 892 is 8,660.44 meters (5.38 miles).

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Last Updated: 31 Jul 2006