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Opportunity used its navigation camera for this northward view of tracks the rover left on a drive from one energy-favorable position on a sand ripple to another.
05.19.2010

Opportunity Looks Back After Hop to a New Pad

Opportunity used its navigation camera for this northward view of tracks the rover left on a drive from one energy-favorable position on a sand ripple to another.The rover team calls this strategy "hopping from lily pad to lily pad."

Opportunity took this image on the 2,235th Martian day, or sol, of the rover's mission on Mars (May 8, 2010). The tracks were taken during a 14.87-meter (49-foot) drive southward on the preceding sol. Mars' southern hemisphere was in the minimal sunshine period close to the winter solstice, which occurred May 13, 2010 (Universal Time).

Making progress on Opportunity's long trek to Endeavour Crater remained the extended mission's priority, but the amount of solar energy was so limited during that season that Opportunity needed to rest to recharge batteries for sols between drives. The sun crosses the sky low in the north. Choosing end points for drives that give a favorable northward tilt for the rover's solar panels makes the recharging go faster. The sand ripples in this part of Meridiani Planum are aligned generally north-south, so this means ending drives on the northern ends of the ripples.

Image Credit: NASA/JPL-Caltech

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