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Juno Perijove 32, February 21, 2021
mcaplinger
post Feb 23 2021, 12:22 AM
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There wasn't enough planetary data around to play with, so we posted the first chunk of PJ32 on missionjuno!


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Disclaimer: This post is based on public information only. Any opinions are my own.
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Brian Swift
post Feb 23 2021, 12:26 AM
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Probably not too relevant for image processing, but there are new (Jan-2021) versions for a couple of Juno SPICE files which havenít been updated in years: jup363.bsp (last version Mar-2015) and de440s.bsp (last version Jul-2018)
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volcanopele
post Feb 23 2021, 01:04 AM
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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:

Attached Image


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mcaplinger
post Feb 23 2021, 01:12 AM
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QUOTE (volcanopele @ Feb 22 2021, 05:04 PM) *
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.


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volcanopele
post Feb 23 2021, 01:18 AM
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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.


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&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
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JohnVV
post Feb 23 2021, 03:53 PM
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QUOTE
Probably not too relevant for image processing, but there are new (Jan-2021) versions for a couple of Juno SPICE files which havenít 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
Attached Image

and
Attached Image
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Gerald
post Feb 27 2021, 10:43 PM
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Maybe I should post JPG copies of a few "pretty images" here.
This one is stacked from the four PJ32 images #20 to #23:
Attached Image


Of particular interest is probably this circumpolar cyclone (CPC)
Attached Image


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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Gerald
post Feb 27 2021, 11:00 PM
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Here some heavily post-processed crops, including arbitrary white-balancing, of #36, #38, and #40:
Attached Image
Attached Image
Attached Image


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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Brian Swift
post Mar 4 2021, 06:58 AM
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Collage of PJ32 images (exaggerated color/contrast)
Attached Image

Full (27,129 x 18,083) version at https://www.missionjuno.swri.edu/junocam/processing?id=10168
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