MGS in Trouble, Formerly: MGS in safe mode |
MGS in Trouble, Formerly: MGS in safe mode |
Guest_Analyst_* |
Nov 8 2006, 11:50 AM
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#1
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Guests |
Did nobody notice this:
Ground Team Stays Busy on 10th Anniversary of NASA Mars Launch Ten year after launch, there is some trouble with a solar array motor and a comm problem probably resulting from this and entering safe mode. Nothing dramatic yet, but something to follow closely. There are other things than MRO and MER Analyst |
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Nov 13 2006, 01:54 AM
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#2
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Hmm...okay, thanks very much for the elucidation, M.
Is it possible that the array is stuck in such a fashion that it's interfering with the HGA in between eclipse periods? I assume that MGS maintains inertial lock with respect to Mars nadir duing normal ops. If this scenario was true, then we might catch a break in a week or two due to the relative orbital motion between Earth & Mars (maybe longer...I think that we're in the middle of that long, slow distant "catch-up" phase between the two orbits). -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Nov 13 2006, 03:01 AM
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#3
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
Is it possible that the array is stuck in such a fashion that it's interfering with the HGA in between eclipse periods? I assume that MGS maintains inertial lock with respect to Mars nadir duing normal ops. With an array stuck I think MGS would immediately leave the nadir-fixed orientation, since the array would be unable to track the sun, as it would need to do. Unfortunately I don't know too much about the safing mode that is entered with a stuck SA gimbal; for example, what pointing of the HGA is commanded in that mode. (Most of what I know is left over from Mars Observer, and the HGA never got deployed on that mission.) -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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