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Juno, perijove 12, April 1, 2018
Sean
post Apr 5 2018, 11:06 AM
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PJ12_100


PJ12_99 Details




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Gerald
post Apr 5 2018, 01:15 PM
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PJ-12 images reprojected to the image stop time of
#090
#091
#092
#093
#094
#099

And several reprojections close to the northern minimum emission angle along Juno's PJ12 trajectory.

An exaple application: Image #092 patched with image #099:
Attached Image


I've also submitted to missionjuno a very first attempt to animate the region near the GRS from #092's vantage point.
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Sean
post Apr 5 2018, 03:41 PM
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Impressive work Gerald... I decided to make a portrait from 3 of your reprojected frames...








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JRehling
post Apr 5 2018, 04:11 PM
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The Great Red Spot has some strikingly – and not trivial – 3D appearance to my eye. Besides an overall bulge, I see what seems to be a single swirl around the western portion that appears to be at a higher altitude than the other clouds, and/or it swirls outside the rest of the GRS around the ten o'clock position (north=up). In principle, this could all be illusion on an essentially flat (at the given resolution) single layer, but it certainly makes me wonder if, given the right ground truths about how shading and color work, we could reconstruct a good 3D model that would be pretty complex.

We've seen the GRS at better resolution, but this oblique view is really striking even if the 3D I think I see is a trompe l'oeil.
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Gerald
post Apr 5 2018, 04:32 PM
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First, I'm astonished, how fast Seán was able to compose such a seamless and smooth result.

And yes, from that distance, and far away from the terminator, we can't expect to see an obvious 3D texture. Jupiter's colors sometimes are rather suggestive of 3D structures that cannot be real. I guess, that an SfS algorithm would misinterprete colorization as structure like our human vision does. But nevertheless, there appears to exist evident layering of orangish haze above whitish cloud tops right of the GRS in this image.
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Sean
post Apr 6 2018, 02:08 AM
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PJ12_94_Detail [G.Eichstadt]


PJ12_90_Details










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scalbers
post Apr 6 2018, 04:47 PM
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QUOTE (JRehling @ Apr 5 2018, 04:11 PM) *
...it certainly makes me wonder if, given the right ground truths about how shading and color work, we could reconstruct a good 3D model that would be pretty complex.

There are variational tomographic methods that can do this sort of thing, at least on Earth as described in this video:

https://www.youtube.com/watch?v=Omoxhoa4iPc


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Sean
post Apr 6 2018, 05:22 PM
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PJ12_92 [Eichstadt/Doran]








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Sean
post Apr 6 2018, 06:17 PM
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Various details from PJ12 [Eichstadt/Doran]

81



82



84



85 [patched lower left]



86





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jccwrt
post Apr 9 2018, 02:15 AM
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Some processed images from PJ12

Some really fascinating cloud motions in a region of the North Equatorial Belt:



Image taken at perijove - spectacular examples of the small cyclonic systems all over the NEB:



Streaky high-altitude clouds and gaps presumably exposing the deeper colorless water vapor cloud deck. The patterns of the surrounding high altitude clouds remind me a lot of transverse cirrus bands that form when convective systems are interacting with jet streams.



Finally, the closest shot of the South Temperate Disturbance. Lots going on here!

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Sean
post Apr 11 2018, 12:39 AM
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PJ12_GRS_reprojected [Eichstadt/Doran]

5 frames blended to produce the following;








Data gaps in top left, top right, bottom right corners clone filled/blurred






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Gerald
post Apr 11 2018, 01:36 AM
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Those are fantastic results, Seán!
This PJ12 flyby is so incredibly rewarding.

...Now better fasten your seat-belts, before you scroll down on this site of
PJ12 partial south polar maps.

This preliminary version is also submitted to missionjuno/processing.
I'll need some sleep now, before I'll try to create some refined versions.
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Gerald
post Apr 12 2018, 06:53 PM
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Outbound reprojections, RGB, #099 to #128.
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monty python
post Apr 16 2018, 05:07 AM
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QUOTE (Gerald @ Apr 10 2018, 08:36 PM) *
Those are fantastic results, Seán!
This PJ12 flyby is so incredibly rewarding

This preliminary version is also submitted to missionjuno/processing.
I'll need some sleep now, before I'll try to create some refined versions.


Wonderful and shows the dynamics going on there.
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Gerald
post Apr 17 2018, 08:35 AM
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PJ12 HD flyby, MP4, and JPG stills (2.2 GB) . I've also added stills of the overexposed northern images, which aren't included into the final MP4 product.

I'll continue to work on some pending maps and cloud animations, today.
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