Juno Perijove 32, February 21, 2021 |
Juno Perijove 32, February 21, 2021 |
Feb 23 2021, 12:22 AM
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#1
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
There wasn't enough planetary data around to play with, so we posted the first chunk of PJ32 on missionjuno!
-------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Feb 23 2021, 12:26 AM
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#2
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Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
Probably not too relevant for image processing, but there are new (Jan-2021) versions for a couple of Juno SPICE files which haven’t been updated in years: jup363.bsp (last version Mar-2015) and de440s.bsp (last version Jul-2018)
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Feb 23 2021, 01:04 AM
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#3
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Nothing jumping out at me in the Io images, though I applaud the effort. Pele was on the terminator. Either the plume wasn't active or it wasn't visible in any of the filters (it does tend to be more visible in the ultraviolet).
Adding an image: -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Feb 23 2021, 01:12 AM
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#4
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
Nothing jumping out at me in the Io images, though I applaud the effort. We did this mostly to test the timing scheme for the upcoming close encounters (you'll note we didn't have to take a full spin of image for these). We got closer to Io but only after it was in eclipse, so this wasn't a great opportunity. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Feb 23 2021, 01:18 AM
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#5
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
It may not have been the best time in terms of resolution, but the timing and viewing geometry was perfect for looking for Pele's plume and that might not be the worst strategy: imaging when known or suspected plume sites are at the terminator.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Feb 23 2021, 03:53 PM
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#6
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
QUOTE Probably not too relevant for image processing, but there are new (Jan-2021) versions for a couple of Juno SPICE files which haven’t been updated in years: jup363.bsp (last version Mar-2015) and de440s.bsp (last version Jul-2018) spk_rec_201205_210127_210210.bsp and jup363.bsp looks to be the newest ftp://naif.jpl.nasa.gov/pub/naif/JUNO/kernels/spk/ screenshots of the io encounter and |
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Feb 27 2021, 10:43 PM
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#7
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Maybe I should post JPG copies of a few "pretty images" here.
This one is stacked from the four PJ32 images #20 to #23: Of particular interest is probably this circumpolar cyclone (CPC) It shows a clearly counter-rotating morphology towards its core. The counter-rotation is fairly clearly confirmed by animations of this CPC. |
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Feb 27 2021, 11:00 PM
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#8
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Here some heavily post-processed crops, including arbitrary white-balancing, of #36, #38, and #40:
With the closest approach slowly creeping northward from PJ to PJ, more and more detail of the northern folded filametary regions (FFRs) is going to be resolved. Less or differently processed PJ32 images are linked to on this site. The drafts of the red inbound lightning search images (bottom half of the page) contain probably hundreds of small brightish spots besides hot pixels, many of them probably energetic particle hit, several stars, and possibly some lightning detections. But its considerably less radiation hits than in approach images of previous PJs. So there may be a chance to distinguish most of them from the lightnings. The first portion of the PJ32 drafts also contains the blue Io Images. |
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Mar 4 2021, 06:58 AM
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#9
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Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
Collage of PJ32 images (exaggerated color/contrast)
Full (27,129 x 18,083) version at https://www.missionjuno.swri.edu/junocam/processing?id=10168 |
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Lo-Fi Version | Time is now: 23rd September 2024 - 09:35 AM |
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