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MRO aerobraking campaign |
| Guest_AlexBlackwell_* |
 Apr 1 2006, 01:33 AM
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| Guest_Analyst_* |
Aug 3 2006, 06:11 AM
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Sad. Does this mean Ka-band is gone forever or is there an alternative / workaround?
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Aug 4 2006, 12:52 AM
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 Member  Group: Members Posts: 321 Joined: 6-April 06 From: Cape Canaveral Member No.: 734 |
QUOTE (Analyst @ Aug 3 2006, 02:11 AM)  Sad. Does this mean Ka-band is gone forever or is there an alternative / workaround? Analyst It was an experiment and not required for the primary mission. No work around |
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Aug 27 2006, 12:43 AM
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Senior Member Group: Members Posts: 2559 Joined: 13-September 05 Member No.: 497 |
QUOTE (Jim from NSF.com @ Aug 3 2006, 05:52 PM) It was an experiment and not required for the primary mission. No work around While I can neither confirm nor deny anything about this problem, couldn't they swap sides to the other transponder? As far as I know, while the Ka-band is not mission-critical it doesn't have any single-point failures. p.s. What's "NSF.com" supposed to mean? The domain belongs to NSF International, which is "the world leader in standards development, product certification, education, and risk-management for public health and safety." -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Aug 27 2006, 03:12 AM
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 Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
QUOTE (mcaplinger @ Aug 26 2006, 07:43 PM) p.s. What's "NSF.com" supposed to mean? The domain belongs to NSF International, which is "the world leader in standards development, product certification, education, and risk-management for public health and safety." I think I can answer that -- Jim hangs out more over on NASASpaceFlight.com than he hangs out here. I'm pretty sure that's the NSF.com he refers to... -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Aug 27 2006, 05:39 PM
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Senior Member Group: Members Posts: 2559 Joined: 13-September 05 Member No.: 497 |
QUOTE (dvandorn @ Aug 26 2006, 08:12 PM) I think I can answer that -- Jim hangs out more over on NASASpaceFlight.com than he hangs out here. Oh, OK, thanks. (BTW, the National Science Foundation is nsf.gov.) According to http://trs-new.jpl.nasa.gov/dspace/bitstre...4/1/06-0902.pdf the transponder (an SDST, see http://nmp-techval-reports.jpl.nasa.gov/DS...ated_Report.pdf ) is redundant but there is only one Ka-band TWTA rather than two for X-band. A Ka-band TWTA failure would take out Ka-band downlink, but a failure downstream from there could be worked around by switching to the other transponder, unless there is some other single-point failure point in the system I am unaware of. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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AlexBlackwell MRO aerobraking campaign Apr 1 2006, 01:33 AM
Bob Shaw Article with first Mars Climate Sounder images:
h... Apr 2 2006, 11:58 PM
ugordan QUOTE (Bob Shaw @ Apr 3 2006, 12:58 AM) A... Apr 3 2006, 08:13 AM djellison I think the instrument scans in 'stripes' ... Apr 3 2006, 08:48 AM ugordan The release says the images were taken from a dist... Apr 3 2006, 12:17 PM elakdawalla QUOTE (djellison @ Apr 3 2006, 01:48 AM) ... Apr 3 2006, 06:17 PM BruceMoomaw It certainly isn't anything to worry about. Apr 3 2006, 12:31 PM ugordan QUOTE (BruceMoomaw @ Apr 3 2006, 01:31 PM... Apr 3 2006, 12:33 PM remcook they are indeed multiple scans.
might be due to th... Apr 3 2006, 07:51 PM edstrick I would assume the jaggies are the results of quic... Apr 4 2006, 09:18 AM RNeuhaus On last wednesday, MRO has started to swoop down t... Apr 15 2006, 02:02 AM climber MRO aerobraking progress from an article from spac... May 12 2006, 08:40 PM djellison http://www.planetary.org/radio/show/00000185/
Upd... May 30 2006, 09:35 AM Joffan New Space.com article on MRO - now in a 20 hour or... May 30 2006, 04:16 PM RNeuhaus When the spacecraft first entered orbit around Mar... Jun 20 2006, 03:33 AM MarkL Is there any source of info showing how the orbit ... Jul 18 2006, 01:26 AM AlexBlackwell QUOTE (MarkL @ Jul 17 2006, 03:26 PM) Is ... Jul 18 2006, 02:05 AM jabe I've been able to follow MRO's arobraking ... Jul 31 2006, 06:31 PM RNeuhaus The last reported news from MRO was on May 10 whic... Jul 31 2006, 06:42 PM djellison Typically - they end up a little bit ahead of the ... Jul 31 2006, 07:05 PM edstrick They are in an orbit with the inclination set by t... Aug 1 2006, 09:28 AM Analyst Has anyone new information about the Ka-Band trans... Aug 1 2006, 10:50 AM Jim from NSF.com QUOTE (Analyst @ Aug 1 2006, 06:50 AM) Ha... Aug 1 2006, 11:47 AM djellison 'more' information - I've not heard AN... Aug 1 2006, 11:10 AM Analyst Sure, Ka-band is an experiment and the baseline is... Aug 1 2006, 11:51 AM Toma B QUOTE (Analyst @ Aug 1 2006, 01:51 PM) Su... Aug 1 2006, 12:38 PM Analyst B)-->QUOTE(Toma B @ Aug 1 2006, 12:38 PM)... Aug 1 2006, 02:05 PM djellison QUOTE (Analyst @ Aug 1 2006, 03:05 PM) I ... Aug 1 2006, 02:10 PM Analyst Besides the very fact of a problem (Ka-band not wo... Aug 1 2006, 02:25 PM chokai QUOTE (Analyst @ Aug 1 2006, 07:25 AM) Be... Aug 3 2006, 02:42 AM Jim from NSF.com Part in a pre-amp failed Aug 3 2006, 04:21 AM centsworth_II QUOTE (Jim from NSF.com @ Aug 3 2006, 12... Aug 3 2006, 03:23 PM jaredGalen QUOTE (centsworth_II @ Aug 3 2006, 03:23 ... Aug 3 2006, 05:00 PM hendric QUOTE (Jim from NSF.com @ Aug 3 2006, 07... Aug 4 2006, 08:08 AM Jim from NSF.com QUOTE (hendric @ Aug 4 2006, 04:08 AM) Wa... Aug 4 2006, 12:55 PM ElkGroveDan QUOTE (dvandorn @ Aug 26 2006, 07:12 PM) ... Aug 27 2006, 03:23 AM jaredGalen Looks like Aerobraking is over...?
“We just made ... Aug 30 2006, 03:56 PM Analyst From the MRO Press Kit:
QUOTE To communicate with... Aug 4 2006, 09:22 AM djellison http://trs-new.jpl.nasa.gov/dspace/handle/2014/708... Aug 4 2006, 09:35 AM Analyst No doubt it is an (now failed) experiment, but the... Aug 4 2006, 10:07 AM jabe Didn't hear anything about the Ka-band band t... Aug 5 2006, 12:21 PM edstrick Once they finish aerobraking, they raise periapsis... Aug 6 2006, 06:34 AM Jim from NSF.com QUOTE (edstrick @ Aug 6 2006, 02:34 AM) O... Aug 6 2006, 09:03 AM jabe looks like the orbit is almost circular..and close... Aug 23 2006, 12:55 PM akuo The MRO webpage has new graphics for the orbit dia... Aug 24 2006, 11:57 AM jabe QUOTE (akuo @ Aug 24 2006, 11:57 AM) The ... Aug 24 2006, 04:13 PM centsworth_II QUOTE (jabe @ Aug 24 2006, 12:13 PM) Mayb... Aug 24 2006, 04:34 PM babakm Endgame is a different name for the Walkout phase,... Aug 24 2006, 01:04 PM djellison I''d have thought they would always schedu... Aug 24 2006, 01:12 PM djellison They'll get out of Aerobraking.....get the pro... Aug 24 2006, 04:23 PM jabe QUOTE (djellison @ Aug 24 2006, 04:23 PM)... Aug 24 2006, 04:27 PM RNeuhaus As I recall well, the Martian atmosphere density v... Aug 24 2006, 09:47 PM Joffan Here's the update from NASA, giving current MR... Aug 25 2006, 07:17 PM RNeuhaus However, MRO has a minor problem with a stuck wave... Aug 25 2006, 08:54 PM craigmcg The only NSF I could think of was National Science... Aug 27 2006, 12:09 PM RNeuhaus A good comment, I think that the Mars' cold at... Aug 30 2006, 05:00 PM jabe It looks like the burn was Successful!!... Aug 30 2006, 10:25 PM climber QUOTE (jabe @ Aug 31 2006, 12:25 AM) It l... Aug 30 2006, 10:51 PM Joffan Yep, aerobraking is officially over, even accordin... Sep 1 2006, 03:43 AM monitorlizard There is an excellent timeline of MRO activity for... Sep 1 2006, 06:54 PM karolp The most interesting ones seem to be:
Nov 9 - Dei... Sep 1 2006, 07:41 PM Joffan QUOTE (monitorlizard @ Sep 1 2006, 12:54 ... Sep 5 2006, 02:12 AM jabe well from the updates on the pictures at MRO site.... Sep 4 2006, 09:55 PM jabe QUOTE (jabe @ Sep 4 2006, 09:55 PM) all t... Sep 4 2006, 10:26 PM Jim from NSF.com Define "deployment". All the appendages... Sep 4 2006, 10:16 PM djellison QUOTE (Jim from NSF.com @ Sep 4 2006, 11... Sep 4 2006, 10:19 PM djellison I think the sort of words they would use are instr... Sep 4 2006, 10:26 PM djellison LMA - Lockheed Martin Aeronautics
Doug Sep 5 2006, 06:55 AM climber QUOTE (djellison @ Sep 5 2006, 08:55 AM) ... Sep 5 2006, 07:01 AM mchan QUOTE (djellison @ Sep 4 2006, 11:55 PM) ... Sep 5 2006, 09:48 AM jabe More details from the latest Burn here.
Another b... Sep 6 2006, 05:13 PM ugordan QUOTE (jabe @ Sep 6 2006, 06:13 PM) Right... Sep 6 2006, 05:32 PM jamescanvin Tht's right. For example the orbit of MGS has ... Sep 6 2006, 10:28 PM RNeuhaus An extract from a spaceref.com
NASA's Mars Re... Sep 7 2006, 04:54 AM edstrick The exact inclination of a sun-synchronous near-po... Sep 7 2006, 12:02 PM remcook I made a quick plot of the required inclination fo... Sep 7 2006, 02:22 PM ugordan Nice plot. It shows the required inclination is ab... Sep 7 2006, 02:27 PM Ant103 I have a question.
The aerobraking campaign is fi... Sep 8 2006, 10:30 PM djellison Aerobraking is finished - but it takes a couple of... Sep 8 2006, 11:15 PM mwolff QUOTE (djellison @ Sep 8 2006, 06:15 PM) ... Sep 9 2006, 02:31 AM jabe well,
the burn was supposed to have happened tonig... Sep 11 2006, 12:29 AM djellison QUOTE (mwolff @ Sep 9 2006, 03:31 AM) MCS... Sep 11 2006, 07:14 AM tedstryk QUOTE (djellison @ Sep 11 2006, 07:14 AM)... Sep 11 2006, 01:02 PM djellison I'm guessing - but perhaps the MRO instruments... Sep 11 2006, 02:04 PM mcaplinger QUOTE (djellison @ Sep 11 2006, 07:04 AM)... Sep 11 2006, 03:01 PM AlexBlackwell NASA Mars Reconnaissance Orbiter Reaches Planned F... Sep 13 2006, 12:08 AM ustrax QUOTE (AlexBlackwell @ Sep 13 2006, 01:08... Sep 13 2006, 12:53 PM djellison The plan for HiRISE has been 'the peoples came... Sep 13 2006, 01:02 PM mcaplinger QUOTE (djellison @ Sep 13 2006, 06:02 AM)... Sep 13 2006, 03:25 PM dvandorn Don't y'all think that, now that the aerob... Sep 13 2006, 07:18 PM AlexBlackwell QUOTE (dvandorn @ Sep 13 2006, 09:18 AM) ... Sep 13 2006, 07:32 PM |
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