Juno Perijove 49, March 1, 2023 |
Juno Perijove 49, March 1, 2023 |
Feb 14 2023, 09:35 PM
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Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
I'm going to choose to be optimistic about PJ49, so with that in mind, I have added previews of JunoCAM's observations of Io for PJ49. Obviously, JunoCAM's real observation plan will likely differ but I added previews for the first and last opportunities to image Io on the pass, a preview of an image nearest closest approach, and one for when Io is near the center of the JIRAM FOV. The observation at closest approach also has the Marduk plume which has a good chance of being observed on this encounter, presuming it is active. The Volund plume might also be visible near the terminator.
The previews use the Voyager/Galileo basemap. The left images were originally projected at the same resolution as JunoCAM but were then enlarged by 5x while the image on the right is the basemap reprojected to 5x the JunoCAM pixel scale. https://pirlwww.lpl.arizona.edu/~perry/Juno/pj49.htm -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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May 3 2023, 11:20 PM
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IMG to PNG GOD Group: Moderator Posts: 2251 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
These images are really challenging to process but it should be possible to get useful results in all areas where at least one color channel has useful data, at least if it's red or green. There are of course the 16x16 pixel blocks of bad data that I will probably set to black (hopefully automatically but I'm not sure it's possible for all of these blocks).
Another nasty problem is that there are some blocks of good data that have 'moved' from their correct location. This is most obvious near the limb (from PJ49_107): There are also obvious problems where the limb is not visible. Here something strange is happening in the red data (from PJ49_107): Most of these problems can probably be fixed be moving these blocks of pixels to their correct location. However, this is a lot of work if it has to be done manually. I doubt it is possible to automatically determine the correct location of these blocks of pixels. It might be possible in some cases where the limb is visible though. |
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