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Cryosat Mission Feared Lost
general
post Oct 8 2005, 06:15 PM
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http://news.bbc.co.uk/1/hi/sci/tech/4319596.stm

Mission control at ESA is growing increasingly concerned about the fate of Europe's ice monitoring spacecraft, Cryosat.

The Cryosat spacecraft was launched at 1902 local time today, Oct 8, from the Plesetsk Cosmodrome in northern Russia, but mission controllers have failed to receive a signal from the spacecraft.
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edstrick
post Oct 17 2005, 06:22 AM
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Regarding the Mars 6 descent data. 2 sets of science results were published from that.

There was very low sample-rate deceleration data, I do not recall if it was from doppler through the relaying flyby vehicle or onboard accelerometers, but it provided a crude atmosphere temperature structure profile that was totally eclipsed ni quality by the Viking entry data.

The other data was engineering data from the pump-down of a mass spectrometer that was going to take atmosphere mass-spectra as the first science task after landing, instead of an image. The data indicated that the mass spectrometer pump was "laboring" and having problems reducing in-instrument pressure to the level needed for the science data after landing. Their inferred cause was an estimated 30% argon in the atmosphere.

This value was large, but not outside the range of some models for the composition of the martian atmosphere, and caused concern for successful operation of the already designed Viking Lander mass spectrometers. Viking had a simple mass spectrometer or ion-spectrometer on the entry heat shield as part of an atmosphere structure experiment, and I think it was able to confirm a much lower limit on argon fraction, enabling normal planned operation of the lander instruments.

The limited Mars 6 results, if I recall, were published in an article in the journal "Icarus" maybe a year before the Vikings got to Mars.
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- general   Cryosat Mission Feared Lost   Oct 8 2005, 06:15 PM
- - hal_9000   I never trusted in new Russians vehicles...   Oct 8 2005, 07:15 PM
|- - dilo   QUOTE (hal_9000 @ Oct 8 2005, 07:15 PM)I neve...   Oct 8 2005, 08:09 PM
|- - OWW   QUOTE (dilo @ Oct 8 2005, 08:09 PM)I know tha...   Oct 8 2005, 08:38 PM
||- - Rakhir   QUOTE (OWW @ Oct 8 2005, 10:38 PM)A Molnya ro...   Oct 9 2005, 12:32 PM
||- - OWW   QUOTE (Rakhir @ Oct 9 2005, 12:32 PM)Actually...   Oct 19 2005, 12:00 PM
|- - Rakhir   QUOTE (dilo @ Oct 8 2005, 10:09 PM)I know tha...   Oct 9 2005, 12:22 PM
- - RNeuhaus   I am afraid it would be alike to ones failed launc...   Oct 8 2005, 07:22 PM
- - BruceMoomaw   The Russians have now confirmed that its upper sta...   Oct 8 2005, 08:27 PM
|- - ugordan   QUOTE (BruceMoomaw @ Oct 8 2005, 10:27 PM)The...   Oct 8 2005, 08:50 PM
- - general   Two days ago, another Russian lauch failed: http:/...   Oct 8 2005, 08:58 PM
|- - Bob Shaw   QUOTE (general @ Oct 8 2005, 09:58 PM)Two day...   Oct 8 2005, 09:49 PM
|- - blobrana   An agency official said experts could not establis...   Oct 8 2005, 11:41 PM
- - hal_9000   Russians should apply more technology in its vehic...   Oct 8 2005, 09:02 PM
|- - Tesheiner   QUOTE (hal_9000 @ Oct 8 2005, 11:02 PM)Russia...   Oct 10 2005, 12:35 PM
|- - ljk4-1   QUOTE (Tesheiner @ Oct 10 2005, 07:35 AM)IMHO...   Oct 10 2005, 02:51 PM
|- - ljk4-1   Volker Liebig, ESA’s Director of Earth Observation...   Oct 10 2005, 03:16 PM
|- - tty   QUOTE (ljk4-1 @ Oct 10 2005, 04:51 PM)Ru...   Oct 10 2005, 04:37 PM
|- - ugordan   QUOTE (tty @ Oct 10 2005, 06:37 PM)Actually i...   Oct 11 2005, 12:21 PM
|- - ljk4-1   QUOTE (ugordan @ Oct 11 2005, 07:21 AM)The ru...   Oct 11 2005, 02:25 PM
- - Adam   Well it's dead : http://www.esa.int/esaCP/SE...   Oct 8 2005, 09:43 PM
- - hal_9000   ESA NEWS CryoSat Mission lost due to launch failur...   Oct 8 2005, 09:46 PM
|- - paxdan   oh bollocks   Oct 8 2005, 09:49 PM
- - BruceMoomaw   QUOTE (ugordan @ Oct 8 2005, 08:50 PM)Rest as...   Oct 9 2005, 02:10 AM
- - Rakhir   Cryosat team desperate to rebuild http://news.bb...   Oct 10 2005, 11:10 AM
- - Rakhir   Recent tests showed that "obsolete" old ...   Oct 15 2005, 01:42 PM
- - deglr6328   astronautix: "Unfortunately, this entire seri...   Oct 15 2005, 06:00 PM
- - BruceMoomaw   I've got some -- a much more detailed account ...   Oct 15 2005, 09:06 PM
- - BruceMoomaw   The report (V.G. Perminov, "The Difficult Roa...   Oct 16 2005, 12:12 AM
|- - ljk4-1   QUOTE (BruceMoomaw @ Oct 15 2005, 07:12 PM)Si...   Oct 16 2005, 02:51 PM
- - RNeuhaus   Bruce, Thanks for bring us the knowledge of the pr...   Oct 16 2005, 02:41 AM
- - BruceMoomaw   Unfortunately, that Wikipedia article still leaves...   Oct 16 2005, 10:34 PM
|- - ljk4-1   QUOTE (BruceMoomaw @ Oct 16 2005, 05:34 PM)Ho...   Oct 17 2005, 12:01 AM
- - BruceMoomaw   Yes, I read that. (As I understand it, it's s...   Oct 17 2005, 02:52 AM
|- - ljk4-1   QUOTE (BruceMoomaw @ Oct 16 2005, 09:52 PM)Ye...   Oct 17 2005, 02:41 PM
- - edstrick   Regarding the Mars 6 descent data. 2 sets of scie...   Oct 17 2005, 06:22 AM
- - Rakhir   Ban On Russian Rokot Launches Lifted "The ca...   Oct 26 2005, 11:35 AM


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