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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Dec 24 2023, 02:57 PM
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
They can take one. I'm hoping they can get one showing Tonatiuh, a large lava flow (~500 km long) north of Zal that formed between 2008 and 2018 (between first ground based detection of a hotspot to a 150-km shifting of the flow front in 2018). Kinda difficult given the longitude (~65-85°W) but even something just showing the general morphology of the flow would be useful enough. For example, I'm pretty sure that the eastern end is the source based on ground-based data, but there are no visible edifices at that end in older imagery. There is one toward the western end in Galileo imagery, and maybe the "western expansion" in 2018 was just a fresh, westward flow from that source.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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