Juno Perijove 58, February 3, 2024 |
Juno Perijove 58, February 3, 2024 |
Jan 4 2024, 05:21 PM
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#1
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
(Started a new thread to avoid cluttering up the PJ57 thread with PJ58 discussion.)
-------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Jan 12 2024, 10:09 PM
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#2
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Member Group: Members Posts: 349 Joined: 20-June 07 From: Slovenia Member No.: 2461 |
I'm not totally sure, but I believe it is possible to present above discussion in a map form. The view above shows Io as seen from Jupiter at the time of the flyby. In other words, the center of map projection is at Io's sub-Jupiter point. This means we are looking at the hemisphere illuminated by Jupiter-shine. I've used this article to estimate how much of Io's disk Juno can see at selected times. (17:49 in red, 17:49:30 in green; 17:50 in blue). I used values of 0.25, 0,265 and 0.28 respectively for f to account for the rising altitude, giving me range circles for parts of Io visible to Juno at these times. You can really see how much the coverage changes in very short time. I still have to account for Junocam FOV as I suspect not the whole visible disk fits into the camera view, but I haven't figured out how to account for that yet. And yes, there is no Jupiter-shine on the inbound track. |
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