JUICE, ESA's L-class mission to the Jovian system |
JUICE, ESA's L-class mission to the Jovian system |
Feb 16 2012, 09:19 PM
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#1
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Yellow book is available (13.1.2012) - JUICE.
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Apr 28 2023, 01:53 PM
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#2
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Senior Member Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
RIME didn’t fully deployed : https://www.esa.int/Science_Exploration/Spa...ce_RIME_antenna
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Apr 29 2023, 03:13 AM
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#3
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Member Group: Members Posts: 129 Joined: 20-April 05 Member No.: 291 |
Is RIME all or nothing? If it ends stuck at 1/3 deployed, is it still somewhat usable?
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Apr 29 2023, 05:18 AM
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#4
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Member Group: Members Posts: 254 Joined: 14-January 22 Member No.: 9140 |
The sun-shadow approach to unstick the problem would seem to be most effective, potentially, when JUICE is closest to the Sun, which will be six months from now around the time of its Venus flyby. So I guess that the time for greater worry would be if it remains stuck after that opportunity.
Partial deployment would certainly impact resolution at the very least, but whether or not partial deployment would permit useful operation depends upon further details which don't seem to be available yet. How much of the antenna is now perpendicular to the instrument's "look" direction; how much noise would be returned from the remaining portions of it? Hopefully we won't have to face those questions. If worse comes to worst, it remains true that Europa Clipper will also provide the opportunity to study Europa thorough with similar capability, and some representative ground tracks at Ganymede and Callisto. |
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