A view from the Opportunity rover on Mars, which is exploring the rim of Endeavour Crater. Picture taken on Sol 3,798 in October 2014, while the rover was en route to a small crater called Ulysses. Credit: NASA/JPL-Caltech/Cornell Univ./Arizona State Univ.
NASA’s Opportunity rover is still experiencing frequent memory resets as it roams the Martian terrain near Endeavour Crater, even though the agency performed a reset a few weeks ago.
Officials, however, say the rover is healthy otherwise and ready for its next science goals: reaching a small crater dubbed Ulysses, and watching a comet pass by Mars in mid-October.
Opportunity is approaching its eleventh anniversary of working on Mars this coming January. The hardy rover has driven 25.34 miles (40.78 kilometers) as of late September, almost a marathon’s worth of exploration. Its original mandate was to last just 90 Earth days on Mars.
In late August, however, science was getting derailed because the aging rover’s Flash memory experienced frequent resets. This kind of memory stores information even while the rover is turned off. NASA did a reformat from afar and said at the time that the procedure worked perfectly, but in the weeks since Opportunity has experienced several resets. The agency is investigating what to do next.
NASA’s Opportunity update archive reports memory resets on Sept. 17, 20, 22, 23, 24 and 26. The agency is calling these events “benign” and the rover is performing drives and science amid the issues.
Among its work, in late September the rover did a twilight test of its panoramic camera to get ready for observations of Comet Siding Spring, which is skimming the Red Planet on Oct. 19, 2014.
On the surface, the rover has been examining ejecta of the small crater Ulysses and doing close-up observations of a rock surface nicknamed “Hoover”. Opportunity’s long-term science goal is to reach a zone dubbed Marathon Valley, where there could be clay minerals that formed in water.
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