ESA Press Efforts, Moved posts |
ESA Press Efforts, Moved posts |
Guest_paulanderson_* |
Nov 29 2005, 10:46 PM
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#1
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Guests |
Just a reminder that the press briefing is tomorrow (November 30, 2005) at 10:00 am ET / 7:00 am PT and will be shown live on NASA TV:
http://www.nasa.gov/home/hqnews/2005/nov/H...s_Briefing.html |
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Nov 29 2005, 10:51 PM
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (paulanderson @ Nov 29 2005, 10:46 PM) Just a reminder that the press briefing is tomorrow (November 30, 2005) at 10:00 am ET / 7:00 am PT and will be shown live on NASA TV: http://www.nasa.gov/home/hqnews/2005/nov/H...s_Briefing.html Some major discoveries will be announced, including: Titan has an atmosphere The Hellas and Argyre basins on Mars are of impact origin. Mars has large volcanos in the Tharsis region. Mars has two moons. -------------------- |
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May 9 2006, 02:22 PM
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#3
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Member Group: Members Posts: 624 Joined: 10-August 05 Member No.: 460 |
I have been very impressed with the Cassini mission reporting, both with the quick release of raw data, new observations, and the event log:
http://saturn.jpl.nasa.gov/news/sig-events.cfm It is great to have a front row seat to a great mission! I bring attention to this here, because of this entry in the Cassini event log: QUOTE It turns out that the SSPS for the USO was tripped, causing no one-way downlink carrier or data. This tripped switch condition is consistent with ones seen in the past. This is the sixteenth trip seen to date, the third trip of a switch that was ON at the time, and the second trip this year. The previous trip occurred very recently on March 2, 2006. They are predicted to occur at a rate of about two per year, and are most likely caused by Galactic Cosmic Rays. I have to ask the question: Could the Huygens channel 'A' failure have been caused by the accidental tripping of the SSPS for the Huygens USO by a cosmic ray, rather than a programming error? The announcement that it was a programming error was made on the same day as the landing, at a time when everyone was exhaustively tired and not necessarily in best form for analysing code. Has a follow-up report been issued confirming the programming error? Was it related to ITAR access restrictions as has been intimated elsewhere? As a sometimes analyst of critical event programing, it is difficult for me to imaging that the command to "Turn on the Power Supply" was omitted from a programing sequence that developed through years of careful planning. This is one time that a gremlin makes more sense. |
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