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What mission was this? |
 Oct 24 2018, 06:59 PM
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Junior Member  Group: Members Posts: 83 Joined: 19-April 05 Member No.: 251  |
When I was a teenager (45 - 50 years ago), there was a mission launched where the main parabolic high gain antenna did not open fully. What was this mission and how did they solve the antenna problem?
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Oct 24 2018, 07:09 PM
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#2
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Senior Member Group: Members Posts: 2558 Joined: 13-September 05 Member No.: 497 |
QUOTE (ddeerrff @ Oct 24 2018, 10:59 AM)  When I was a teenager (45 - 50 years ago), there was a mission launched where the main parabolic high gain antenna did not open fully. What was this mission and how did they solve the antenna problem? Galileo. They didn't solve the problem and the mission only returned a tiny fraction of the planned data. They compressed the data heavily to try to get back as much as possible. [Mods, obviously this thread is misplaced.] ADMIN: Not anymore. 
-------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Oct 27 2018, 02:32 AM
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 Member Group: Members Posts: 292 Joined: 29-December 05 From: Ottawa, ON Member No.: 624 |
[attachment=43606:Honeymoo...37_small.jpg]
QUOTE (mcaplinger @ Oct 24 2018, 12:09 PM) Galileo. They didn't solve the problem and the mission only returned a tiny fraction of the planned data. They compressed the data heavily to try to get back as much as possible. [Mods, obviously this thread is misplaced.] ADMIN: Not anymore. Ironically, on my honeymoon in 1980, I somehow convinced JPL to let me have a private tour even though it was closed to the public. I met a scientist working on Galileo whose job it was to make sure the probe could survive the vibrations of launch. I said it was a good thing it was going to be launched by the shuttle, just in case the main antenna fails to unfurl and the crew could EVA to fix it. (Notwithstanding I didn't know the launch and deploy sequence, and the Challenger tragedy changed the entire launch profile which ultimately impacted the deployment of the antenna.) Sorry about posting the pic twice, i couldn't figure a way of removing it. [ADMIN: Fixed. ]
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ddeerrff What mission was this? Oct 24 2018, 06:59 PM
ddeerrff Thanks. Been bugging me for quite some time now t... Oct 25 2018, 03:02 AM
ngunn QUOTE (ddeerrff @ Oct 25 2018, 04:02 AM) ... Oct 25 2018, 08:36 AM nprev Yeah, that's all true. We'll take a look a... Oct 25 2018, 03:15 PM RoverDriver I think that this picture is of the Voyager mode i... Oct 27 2018, 03:21 PM mcaplinger A lot more to it than that -- see https://www.nasa... Oct 27 2018, 04:12 PM stevesliva That tape recorder was a nightmare, too. The whol... Oct 27 2018, 07:52 PM mcaplinger QUOTE (stevesliva @ Oct 27 2018, 11:52 AM... Oct 27 2018, 11:26 PM |
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