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Mro On Approach, TCM-3 not required
Redstone
post Feb 3 2006, 11:06 PM
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MRO has shifted from the cruise phase to Approach phase. Apparently, the trajectory is so good that TCM-3 was cancelled. This is good news for the prospects for a long life for MRO supporting future missions. TCM-4 is on Feb 28, and MOI on March 10. Only 5 weeks away! smile.gif
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djellison
post Feb 21 2006, 03:27 PM
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As I understand it - spacecraft are all moving very quickly in different directions, so there is dopler to worry about, and they are scheduled to listen at particular upilnk rates, and so on and so forth.

If MRO's listening to it's uplink at X bps, and it's being sent at Y Hz off the specified frequency, it may be that Spirit interprets that as a bad uplink as it was expecting W bps and is moving in a way that is Z Hz of specified wavelength.

I'm fairly sure they'll be able to sequence things intelligently to sort this problem out.

Doug
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- Redstone   Mro On Approach   Feb 3 2006, 11:06 PM
- - RNeuhaus   Good news. I seems that MRO has started to gain it...   Feb 4 2006, 04:41 AM
|- - ugordan   QUOTE (RNeuhaus @ Feb 4 2006, 05:41 AM)I seem...   Feb 4 2006, 12:13 PM
|- - jmknapp   QUOTE (ugordan @ Feb 4 2006, 07:13 AM) As...   Feb 15 2006, 01:19 PM
|- - jmknapp   PS: Does anyone know what the field-of-view and re...   Feb 15 2006, 02:28 PM
- - abalone   QUOTE (Redstone @ Feb 4 2006, 10:06 AM)MRO ha...   Feb 4 2006, 12:49 PM
- - djellison   It's odd to think that from 'aboe' - M...   Feb 4 2006, 03:19 PM
|- - SFJCody   How many pixels would HiRise get across the disc o...   Feb 4 2006, 03:50 PM
|- - mcaplinger   QUOTE (SFJCody @ Feb 4 2006, 07:50 AM)How man...   Feb 4 2006, 05:26 PM
- - djellison   This is from a little PDF I found at the same plac...   Feb 4 2006, 05:41 PM
|- - crabbsaline   QUOTE (djellison @ Feb 4 2006, 12:41 PM)This ...   Feb 7 2006, 11:11 AM
- - djellison   I think they're using the ONC more as a tech-d...   Feb 7 2006, 11:57 AM
- - djellison   http://bookstore.spie.org/index.cfm?fuseac...d=619...   Feb 15 2006, 02:35 PM
|- - jmknapp   QUOTE (djellison @ Feb 15 2006, 09:35 AM)...   Feb 15 2006, 03:52 PM
|- - Bob Shaw   From the MRO website: http://mars.jpl.nasa.gov/mr...   Feb 15 2006, 07:29 PM
|- - jmknapp   I made an animation of the approach through the fi...   Feb 16 2006, 03:35 PM
- - djellison   Given the addition of some post-moi-pre-aerobrakin...   Feb 16 2006, 03:46 PM
|- - jmknapp   QUOTE (djellison @ Feb 16 2006, 10:46 AM)...   Feb 16 2006, 05:00 PM
|- - mcaplinger   QUOTE (jmknapp @ Feb 16 2006, 09:00 AM) L...   Feb 16 2006, 05:34 PM
|- - jmknapp   QUOTE (mcaplinger @ Feb 16 2006, 12:34 PM...   Feb 16 2006, 06:03 PM
|- - helvick   QUOTE (jmknapp @ Feb 16 2006, 06:03 PM) W...   Feb 16 2006, 06:30 PM
|- - mcaplinger   QUOTE (jmknapp @ Feb 16 2006, 10:03 AM) W...   Feb 16 2006, 10:14 PM
|- - jmknapp   QUOTE (mcaplinger @ Feb 16 2006, 05:14 PM...   Feb 16 2006, 10:42 PM
|- - mcaplinger   QUOTE (jmknapp @ Feb 16 2006, 02:42 PM) I...   Feb 16 2006, 11:31 PM
|- - jmknapp   QUOTE (mcaplinger @ Feb 16 2006, 06:31 PM...   Feb 17 2006, 02:00 AM
|- - mcaplinger   QUOTE (jmknapp @ Feb 16 2006, 06:00 PM) H...   Feb 17 2006, 04:05 AM
|- - Bob Shaw   QUOTE (mcaplinger @ Feb 17 2006, 04:05 AM...   Feb 17 2006, 12:18 PM
|- - AlexBlackwell   QUOTE (Bob Shaw @ Feb 17 2006, 12:18 PM) ...   Feb 17 2006, 06:13 PM
|- - jmknapp   QUOTE (AlexBlackwell @ Feb 17 2006, 01:13...   Feb 17 2006, 06:28 PM
||- - AlexBlackwell   QUOTE (jmknapp @ Feb 17 2006, 06:28 PM) B...   Feb 17 2006, 06:34 PM
||- - elakdawalla   QUOTE (AlexBlackwell @ Feb 17 2006, 10:34...   Feb 17 2006, 06:36 PM
||- - AlexBlackwell   QUOTE (elakdawalla @ Feb 17 2006, 06:36 P...   Feb 17 2006, 06:50 PM
|- - mcaplinger   QUOTE (AlexBlackwell @ Feb 17 2006, 10:13...   Feb 17 2006, 07:50 PM
|- - AlexBlackwell   QUOTE (mcaplinger @ Feb 17 2006, 07:50 PM...   Feb 17 2006, 08:06 PM
||- - djellison   QUOTE (AlexBlackwell @ Feb 17 2006, 08:06...   Feb 17 2006, 08:09 PM
||- - RNeuhaus   QUOTE (AlexBlackwell @ Feb 17 2006, 03:06...   Feb 17 2006, 10:55 PM
|- - jmknapp   QUOTE (mcaplinger @ Feb 17 2006, 02:50 PM...   Feb 17 2006, 09:39 PM
|- - ElkGroveDan   QUOTE (jmknapp @ Feb 17 2006, 09:39 PM) F...   Feb 17 2006, 11:06 PM
- - Sunspot   I kept reading that they wouldn't be doing any...   Feb 16 2006, 05:15 PM
- - Phil Stooke   It wouldn't be targeted, just whatever they ar...   Feb 16 2006, 06:49 PM
|- - babakm   Some imaging of Phoenix candidate site D is on the...   Feb 16 2006, 07:05 PM
- - RNeuhaus   Below is the Sout Pole Cap that looks different th...   Feb 16 2006, 07:10 PM
|- - brianc   A nice article about the MRO HIRISE camera syst...   Feb 16 2006, 08:00 PM
- - djellison   Thing is - only a tiny tiny change in the altitiud...   Feb 17 2006, 12:47 PM
- - Phil Stooke   Emily: "I guess no joke is too old and tired...   Feb 17 2006, 06:58 PM
|- - lyford   QUOTE (Phil Stooke @ Feb 17 2006, 10:58 A...   Feb 17 2006, 08:06 PM
|- - dvandorn   QUOTE (lyford @ Feb 17 2006, 02:06 PM) It...   Feb 18 2006, 12:57 AM
|- - Bob Shaw   QUOTE (dvandorn @ Feb 18 2006, 12:57 AM) ...   Feb 18 2006, 01:06 AM
- - djellison   Being VERY unscientific, approx speed at periareio...   Feb 17 2006, 09:59 PM
|- - Bob Shaw   The way I see it, almost *any* orbit is better tha...   Feb 17 2006, 10:46 PM
|- - AlexBlackwell   QUOTE (Bob Shaw @ Feb 17 2006, 10:46 PM) ...   Feb 17 2006, 10:52 PM
- - AlexBlackwell   Feb. 17, 2006 Dwayne Brown/Erica Hupp Headquarter...   Feb 17 2006, 10:25 PM
- - dvandorn   I think it's probably safest to blame it all o...   Feb 18 2006, 01:19 AM
- - yaohua2000   Mars Reconnaissance Orbiter was only 5 million kil...   Feb 19 2006, 01:12 AM
- - RNeuhaus   After reading more details about MRO. I found it m...   Feb 19 2006, 06:14 AM
|- - djellison   [quote name='RNeuhaus' post='42269' date='Feb 19 2...   Feb 19 2006, 09:32 AM
|- - helvick   QUOTE (djellison @ Feb 19 2006, 09:32 AM)...   Feb 19 2006, 10:57 AM
- - The Messenger   Nice collection of details. Hydrazine (HN#NH) has ...   Feb 19 2006, 06:35 AM
|- - dilo   Thanks for resuming all these infos, Rodolfo (perh...   Feb 19 2006, 07:50 AM
- - deglr6328   QUOTE (RNeuhaus @ Feb 19 2006, 06:14 AM) ...   Feb 19 2006, 10:46 AM
- - Airbag   Another interesting tidbit - MRO uses the same X-b...   Feb 19 2006, 07:26 PM
|- - Bob Shaw   QUOTE (Airbag @ Feb 19 2006, 07:26 PM) An...   Feb 19 2006, 09:41 PM
|- - belleraphon1   QUOTE (Airbag @ Feb 19 2006, 02:26 PM) An...   Feb 20 2006, 12:51 AM
- - Myran   QUOTE Bob Shaw said Am I alone in thinking that th...   Feb 19 2006, 11:03 PM
- - djellison   I imagine that a spacecraft that notices a signal ...   Feb 19 2006, 11:07 PM
|- - Steve   QUOTE (djellison @ Feb 19 2006, 06:07 PM)...   Feb 19 2006, 11:27 PM
|- - Bob Shaw   QUOTE (Steve @ Feb 19 2006, 11:27 PM) Ass...   Feb 19 2006, 11:40 PM
- - djellison   I was thinking that, I imagine they can sequence t...   Feb 19 2006, 11:42 PM
- - edstrick   On it's second lunar day, JPL tried to get Sur...   Feb 20 2006, 06:08 AM
|- - ugordan   Don't the DSN uplink commands have a sort of d...   Feb 20 2006, 08:27 AM
- - edstrick   I think we're dealing with paleolithic technol...   Feb 20 2006, 08:46 AM
|- - Airbag   QUOTE (edstrick @ Feb 20 2006, 03:46 AM) ...   Feb 20 2006, 07:22 PM
|- - Bob Shaw   Can I patent interplanetary MAC addresses - they c...   Feb 20 2006, 10:18 PM
|- - helvick   QUOTE (Bob Shaw @ Feb 20 2006, 10:18 PM) ...   Feb 21 2006, 12:08 AM
|- - Bob Shaw   QUOTE (helvick @ Feb 21 2006, 12:08 AM) I...   Feb 21 2006, 11:16 AM
|- - helvick   QUOTE (Bob Shaw @ Feb 21 2006, 11:16 AM) ...   Feb 21 2006, 02:19 PM
|- - mcaplinger   QUOTE (Bob Shaw @ Feb 21 2006, 03:16 AM) ...   Feb 21 2006, 02:39 PM
- - Myran   QUOTE Airbag said: Change Opportunity's antenn...   Feb 20 2006, 10:40 PM
- - djellison   As I understand it - spacecraft are all moving ver...   Feb 21 2006, 03:27 PM
- - Toma B   Is there any planed imaging with HiRISE on approac...   Feb 24 2006, 07:47 AM
|- - ugordan   There's always a good reason for not performin...   Feb 24 2006, 08:06 AM
|- - djellison   --><div class='quotetop'>QUOTE(T...   Feb 24 2006, 08:27 AM
- - Sunspot   The same was done with Cassini during the week or ...   Feb 24 2006, 09:38 AM
- - AlexBlackwell   The MRO arrival press kit is now up: Mars Reconna...   Feb 24 2006, 04:35 PM
|- - mcaplinger   QUOTE (AlexBlackwell @ Feb 24 2006, 08:35...   Feb 26 2006, 06:06 PM
- - djellison   And the press conf is in an hour and a bit as well...   Feb 24 2006, 04:53 PM
|- - jmknapp   QUOTE (djellison @ Feb 24 2006, 11:53 AM)...   Feb 25 2006, 03:29 PM
- - RNeuhaus   The MRO spacecraft will remain out of contact for ...   Feb 26 2006, 06:27 PM
|- - The Messenger   QUOTE (RNeuhaus @ Feb 26 2006, 11:27 AM) ...   Feb 27 2006, 04:17 PM
|- - Bob Shaw   QUOTE (RNeuhaus @ Feb 26 2006, 06:27 PM) ...   Feb 27 2006, 04:21 PM
- - edstrick   With apollo, for both orbit insertion and trans-ea...   Feb 27 2006, 07:10 AM
|- - jmknapp   Does anyone know which DSN stations and/or other f...   Feb 27 2006, 03:32 PM
|- - RNeuhaus   QUOTE (jmknapp @ Feb 27 2006, 10:32 AM) D...   Feb 27 2006, 07:07 PM
|- - mcaplinger   QUOTE (RNeuhaus @ Feb 27 2006, 11:07 AM) ...   Feb 27 2006, 07:46 PM
- - djellison   Of course - the reason for having such a low targe...   Feb 27 2006, 04:28 PM
|- - jmknapp   QUOTE (djellison @ Feb 27 2006, 11:28 AM)...   Feb 27 2006, 04:50 PM
|- - mcaplinger   QUOTE (djellison @ Feb 27 2006, 08:28 AM)...   Feb 27 2006, 04:54 PM
- - djellison   Stanford was listening to MER because MER was also...   Feb 27 2006, 04:53 PM
- - djellison   Ahh - someone mis-quoted the press pdf previously ...   Feb 27 2006, 05:01 PM
- - Bob Shaw   QUOTE (djellison @ Feb 27 2006, 05:01 PM)...   Feb 27 2006, 05:11 PM
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