Opportunity hasn't moved. So what happened to all those drive commands the last few days? 

How come this one from the same download is different, is it an old one? I dont know how to interpret the codes

Because Oppy, like most of us, has more than one eye.

Unfortunately, it was a week of frustration over on the Opportunity side of Mars. You get good luck and bad luck in this game, just like anything else, and we've had more than our share of bad luck at Meridiani lately.

First there was the unexpected drive partway into something we called Telluride Dune, a little drift that was nasty enough that it triggered our slip-check alarm and stopped a drive. Fair enough; that's the way things are supposed to work when the going gets dangerous in this kind of terrain. No sooner did we back out of that, though, than we got hit by another of the mystery reboots that Opportunity has encountered a few times in the past several months. This was different from what hit us on Sol 596... that one we understand and can trace to a simple bug in the software. But this one we don't understand yet, and it cost us a couple more sols. And then, just as soon as we recovered from that, we had a minor problem at one of the Deep Space Network stations and lost two more sols. Not a good week.

Each event was benign individually, and each was unrelated to the others. So it really was nothing other than a run of bad luck, for a rover that's had more than its share of good luck. Still, the end result was a week in which we made zero progress toward the Mogollon Rim, so we're going to try to really get things moving in the week ahead. One good piece of news is that this latest mystery reboot was almost identical to one that happened a couple of months ago... and somewhere in that fact may lie the clue that'll help us figure it out. The reboots do no harm to the vehicle, and we've gotten very good at recovering from them. But they cost us sols when they happen, and that's never a good thing. So we're working hard on this one.

<glass half full>
Nothing terminal with Oppy.
</glass half full>

The Spirit is not experiencing any software bug like Opportunity. I am thinking that the software logaritm of Opportunity must be different than Spirit. Maybe, it has an additional logic for sleepage computing and any avoidance manouvers related to that.

Rodolfo

Can they monitor all aspects of all parts between critical components? IOt sounds like a lot of extra complexity and weight to include.

.. One good piece of news is that this latest mystery reboot was almost identical to one that happened a couple of months ago... and somewhere in that fact may lie the clue that'll help us figure it out. The reboots do no harm to the vehicle, and we've gotten very good at recovering from them.

Don't think so - both are running the same version of the flight software. The environments and use cases are different though and there are operational parameters that differ...