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Spirit Sol 1102

8 Feb 2012, 11:08 UTC
Spirit Sol 1102
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We didn't see the MB's contact switches trip on Puenta Arenas, after not seeing them trip on Mount Darwin a few days ago. This is getting a little worrisome -- it's not too surprising that we had a problem at Mount Darwin, since the target was in the air, but we sort of expected to see contact at Puenta Arenas.It's remotely possible they're not working any more, which would be awful; the MB contact plate is our only way to reliably sense the soil, so that would take out our ability to IDD soil targets. However, the switches are redundant for this reason, and unless there's a pebble stuck behind the contact plate or something, everything is probably just fine. We'll have to do an experiment on this in the near future.But not today. Today we're driving.If you can call it that. We're going to spend most of the day just turning around -- a slow and painful endeavor on a vehicle with a broken wheel. We have to use the fact that the RF wheel is an anchor, by pushing and pulling the whole vehicle around it. It's not precise, and it's not pretty, but it's tested and it ...

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