MRO in glitch mode Options

[PDP8E]

Mars Orbiter Glitch Stalls Red Planet Science

By Tariq Malik
Senior Editor
posted: 26 February 2009
10:18 am ET

http://www.space.com/missionlaunches/09022...alfunction.html

[Guest_Zvezdichko_*]

http://www.novosti-kosmonavtiki.ru/content/news.shtml

According to Novosti Kosmonavtiki (a very serious website), MRO now working normally.

[djellison]

According to NASA ( a very serious space agency ) it's out of safe mode as well

http://www.nasa.gov/mission_pages/MRO/news/mro-20090303.html

[Guest_Zvezdichko_*]

According to NASA ( a very serious space agency )

Was that needed?

And yes, Novosti Kosmonavtiki is a credible source

[MahFL]

MRO in normal ops is good news.

[mps]

Zvezdichko, I think the point was that we all know about Novosti Kosmonavtiki being a very credible source

[Guest_Zvezdichko_*]

Uh?

http://www.space.com/missionlaunches/09080...er-revived.html

[tuvas]

From what I can tell, MRO is in a pretty serious safe mode at this time, with no hope to get out of it anytime in the short term future. It's been in Safe mode for a week, and likely will continue for another week or so. It's also somewhat compounded by fires in the JPL area. The good news is, the MRO science teams will actually get to spend an extended weekend, taking it off for Labor Day.

[Guest_Zvezdichko_*]

Hm. Source?

Or are you the source because you are (may be) involved in the project?

[Marz]

Hm. Source?

Or are you the source because you are (may be) involved in the project?

Here's the MRO's press release about the Safe Mode spazz:

http://marsprogram.jpl.nasa.gov/mro/newsro.../20090828a.html

[tuvas]

Here's the MRO's press release about the Safe Mode spazz:

http://marsprogram.jpl.nasa.gov/mro/newsro.../20090828a.html

I re-read my post, and realized I was somewhat pessimistic... All instruments are working on MRO, but this is the most serious safing event so far, or at least, they are worried more about it due to the frequency of the events... Just like Spirit being stuck right now, the engineers are taking it slow to make sure there isn't anything seriously wrong... It shouldn't be months before it's back to full operations, but if it was a normal event, it would already be over. Give it a week or two, and a bit of luck, and it'll be on. I only meant to say it was a bit more serious than previous events, that's all.

Oh, I should also say, JPL is opened fully, guess I was getting an older source of news saying it was closed temporarily... Sigh.

As for sources, well, there bits and pieces from several spots, here's a few http://twitter.com/#search?q=%23HiTwycle
http://www.jpl.nasa.gov/news/news.cfm?release=2009-133

[tuvas]

http://www.space.com/missionlaunches/09090...tch-update.html

States that the orbiter will remain in safe mode for weeks.

[Guest_Sunspot_*]

Mixed news I think

http://www.spaceflightnow.com/news/n0911/07mro/

[briv1016]

Should we be reading into this:

Once the probe its given a clean bill of health, it will restart science observations and play a larger role as a communications relay station for NASA's Spirit and Opportunity rovers.

[djellison]

It's fairly clear - there's no 'reading into' requried. It make far more sense to schedule downlink via MRO.

It frees up MODY (as it's downlink is much lower than MRO)
It''s an accounting error in terms of MRO downlink
It's going to be on the ground faster with MRO
Thus it opens up a bit of extra sequence planning time.

DOWNSIDE - the passes are earlier in the afternoon, so less time for rover activities before stopping for the day. (But part of me wonders why they can't just start earlier - the generated power during the day will still be the same - maybe it's a heater requirement thing starting too early)

Comparing http://descanso.jpl.nasa.gov/DPSummary/odyssey_telecom.pdf and http://descanso.jpl.nasa.gov/DPSummary/MRO_092106.pdf

MODY is between 28,440 b/s and 110,600 b/s for 70-m passes, and between 3,950 b/s and 110,600 b/s for 34-m passes.

MRO starts at 500kbps on 34-m passes at the furthest distance from Earth - and goes up to 2.6Mbps on 34 and 6Mbps on 70-m at closest approach.