Juno Perijove 57, December 30, 2023 |
Juno Perijove 57, December 30, 2023 |
Oct 19 2023, 09:08 PM
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
I know the first close Io flyby is still a couple of months away but I'm going to go ahead and start up the topic now with a few preview images that the global map from PJ55 into the pixel scale, lighting conditions, and orientation of the highest resolution images that JunoCam would take (illuminated by the sun, there's always a chance for Jupiter-shine images), based on the current reference spk and c-kernel:
This also assumes an image cadence of 1 every other rotation (so 1 per minute). info about the encounter: CODE Perijove Date (UTC) SC Altitude (Io, km) SC Latitude (Io IAU, deg) SC W Longitude (Io IAU, deg) Vinf (Io, km/s) Phase Angle Magnetic Latitude of Io (Jupiter System III, deg) E Longitude of Io (Jupiter System III, deg) True Anomaly of Io (deg) Separation Angle
PJ57 12/30/2023 08:36:00.681 1500.021 63.694 94.641 30.047 108.885 3.418 228.269 248.805 21.175 -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Jan 1 2024, 04:23 PM
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Member Group: Members Posts: 242 Joined: 13-October 09 From: Olympus Mons Member No.: 4972 |
The Jupitershine area really improves coverage on almost the entire area of that large northern hemisphere low resolution area. I really hope we can get further processing of that.
-------------------- "Thats no moon... IT'S A TRAP!"
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Jan 1 2024, 04:55 PM
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#3
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Member Group: Members Posts: 251 Joined: 14-January 22 Member No.: 9140 |
The ideal processing of the Jupitershine areas might benefit from applying an asymmetrical filter to the pixels. Low signal to noise produces a speckling effect which is clearly an artifact and brings out some hot pixels that over-respond, and this makes the colors garish on a very small scale. Smoothing out the values in each filter to bring the hot ones down to the local median might improve this greatly.
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