Safe Mode Options

[mars_armer]

I just heard that Odyssey went into safe mode on Saturday. I haven't seen any official announcement yet.

One result is that MER is having to replan using direct to earth only. Current estimate is that Odyssey will not be able to support UHF relay until "mid-week at the earliest".

[djellison]

If anyone wants to poke around somewhere they probably shouldnt be...


http://mgsw3.jpl.nasa.gov/seq/odyseq.html

there might be something in there somewhere

I've got to spend the rest of the day on the wonderful M1 visiting Watford - but I'll be chasing this topic VERY hard tonight and sending emails to appropriate places.

I did find this though...

0790454015:3 2005-017T18:30:15 ci2905 d:/seq/copy_rw_failed_to_cmic RELATV 9F0664FD
0792456839:5 2005-040T22:50:36 ci2960 d:/seq/solar_array_cycle_05_040 RELATV 3D68978F
0792531971:6 2005-041T19:42:48 ci2980 d:/seq/mmc_fubar_mem_fill_05_041 RELATV 76242CDA
0792940586:3 2005-046T13:13:02 ci2982 d:/seq/themis_4w_htr_on RELATV 7BB8E9C9
0792982744:3 2005-047T00:55:40 ci2983 d:/seq/themis_4w_htr_off RELATV 7A0F71F
0794187466:3 2005-060T23:34:20 ci2977 d:/seq/dpt_init_124k_relay RELATV 5B60AB8E
0796506249:0 2005-087T19:40:39 ci2997 d:/seq/crc_check_file_seq_pt1 RELATV CF6DDCD5
0796584494:1 2005-088T17:24:44 ci2998 d:/seq/crc_check_file_seq_pt2 RELATV CCA359FA
0797013133:8 2005-093T16:28:43 ci2262 d:/seq/safe_mode_daily_diagnostics RELATV 47A47FFE
0797091539:9 2005-094T14:15:29 ci2262 d:/seq/safe_mode_daily_diagnostics RELATV 47A47FFE
0797188568:1 2005-095T17:12:37 ci3007 d:/seq/rexmit_050405_upgo RELATV 3C447CF7
0797189118:1 2005-095T17:21:47 ci2262 d:/seq/safe_mode_daily_diagnostics RELATV 47A47FFE
0797197803:1 2005-095T19:46:32 ci2698 d:/seq/heap_reinit RELATV 53EA825F
0797203805:1 2005-095T21:26:34 ci3005 d:/seq/map_sm_recovery_upgo RELATV 939F56E1

April 1st was DOY 91 - so that last uplink was, I believe, 21:26 April 5th - i.e. late last night.

Doug

[RedSky]

If anyone wants to poke around somewhere they probably shouldnt be...

http://mgsw3.jpl.nasa.gov/seq/odyseq.html

there might be something in there somewhere

...
Doug

Thanks for that link.... real interesting stuff there. I looked into the Radiation Log and found the frequency of command files sent to Odyssey each day this year. There was an especially interesting label of "FSW_OBJ_INITIAL". I created a little graph of files radiated by day... with the "Red" portion of the bars indiciating those INIT files. Seems like a lot of activity in the last few days to get out of safe mode with a lot of those INIT command files. Glad to hear things might be fixed!

[cIclops]

Finally an "official" story from NASA about all this, not on the Mars Odyssey page of course but in the Spirit status report for April 8:

(Sol 446 is April 5, 2005)

"Sol 446:
Spirit and Opportunity use NASA's Mars Odyssey orbiter as their main communications link between Mars and Earth. On April 2, Odyssey entered "safe mode," which is a protective state a spacecraft automatically enters when onboard fault protection software instructs the spacecraft to disregard its onboard sequence of commands and wait for instructions from the ground. As a result, relay communication with the rovers was suspended, and Spirit did not receive any data from sols 444 and 445. With an unknown status of the rover after its drive, the Spirit team restricted rover operations to remote sensing.

Sol 447:
The Odyssey flight team scrambled to recover the orbiter, but it remained in a safe state, not yet available to support relay communications. Spirit received very little information from its "direct-to-earth" communications link, so the rover team planned another basic remote sensing sol, which generated little data.

Sol 448 (April 7, 2005):
Spirit performed additional remote sensing, including panoramic camera and navigation camera imaging. The Odyssey team brought the orbiter back on-line, the Spirit team received all imaging needed for continuing to drive, and team members are planning to drive on sol 449 with a new appreciation for their orbiting partner! The Odyssey team is investigating the cause behind the fault protection software sending the orbiter into safe mode."

http://marsrovers.jpl.nasa.gov/mission/status.html

Note there is no mention of the Odyssey safing in the earlier status reports for April 2, 3 or 4