MRO in glitch mode |
MRO in glitch mode |
Nov 8 2009, 11:17 AM
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#16
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
The fix sounds reasonable--stretching out the response time to prevent the fault protection system from triggering a reset from what are presumed to be very transient alarms. They're proceeding with extremely prudent caution & diligence, though.
'Desensitizing' an FPS response must be done with great care just in case this transient condition isn't behaving precisely as they think it is based on ground modeling. Gotta be pretty confident that allowing the condition to persist longer won't do real damage (possibly in unexpected ways) before making such a change. -------------------- 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 8 2009, 12:16 PM
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#17
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Member Group: Members Posts: 239 Joined: 18-December 07 From: New York Member No.: 3982 |
But is MRO's time better spent optimized for pure science instead of both science and relay?
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Nov 8 2009, 03:12 PM
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#18
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
MRO doing relay is a much much smaller impact on MRO, than Odyssey doing relay is an impact on Odyssey. Relay on Odyssey could take a couple of hours out of every day for downlink. (a 15 minutes 128 kbps pass can take a long time at 33kbps to downlink )
At worst - it's a couple of minutes for MRO. In terms of total science done - there's less loss by asking MRO to do it. It's a BIT impact on Odysseys downlink budget - it's an accounting error for MRO. And of course - there's science value IN the relay itself - i.e. the data returned from the rovers. |
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Nov 8 2009, 04:38 PM
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#19
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Member Group: Members Posts: 239 Joined: 18-December 07 From: New York Member No.: 3982 |
It comes down to the value of time on each spacecraft. Have we finally reached a tipping point that "x" amount of time on MRO is less valuable then "x+n" amount of time on Odyssey?
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Nov 8 2009, 05:09 PM
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#20
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
It's the impact for downlink that's massively, the dominant force here. It's a double digit percentage hit on Mars Odyssey's downlink to do MER. It's less than a single digit on MRO.
It's not time - it's data volume. |
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Nov 25 2009, 10:25 PM
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#21
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Member Group: Members Posts: 239 Joined: 18-December 07 From: New York Member No.: 3982 |
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Dec 8 2009, 08:17 PM
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#22
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Via @HiCommander
QUOTE MRO is out of safe mode. Instruments, including #HiRISE, still safed for a short while longer.
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Dec 17 2009, 05:01 PM
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#23
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
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Dec 23 2009, 10:18 PM
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#24
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
-------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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