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Juno, perijove 10, December 16, 2017
Gerald
post Dec 18 2017, 12:15 PM
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Data of Juno's Perijove-10 are going to be downlinked.

Here is a tiny 6000-fold time-lapsed simulation from 2017-12-16T16:30:00.000 to 2017-12-16T20:00:00.000:
Attached Image
It shows, that during approach, Jupiter's night side has come into JunoCam's field of view, first. Then there have been some interesting new perspectives, before Jupiter's south polar region has been in JunoCam's view during departure.
The simulation is based on preliminary, and on some reconstructed SPICE data. Timing of actual image data differ from the stills of the above tiny simulation.
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Adam Hurcewicz
post Dec 18 2017, 01:40 PM
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I can't wait for new pictures ! smile.gif


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Bjorn Jonsson
post Dec 18 2017, 09:52 PM
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This is also interesting (from https://www.missionjuno.swri.edu/junocam/voting?id=8 ):

QUOTE
We are also reducing the amount of compression for the closest images to minimize compression artifacts.

The area around latitude 40 degrees north has been especially photogenic since Juno's arrival (I don't know if images of that area qualify as "closest images" though).
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Gerald
post Dec 18 2017, 10:17 PM
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Near closest approach, the contrast turned out to be pretty low during previous flybys, resulting in DCT block artifacts of approximately the size of potentially interesting features, and a slow flyby movie would also degrade in quality due to the visibility of the compression artifacts. Additionally, near the latitudes of the GRS, there seem to have formed large turbulent features before PJ9 that are worth images of good quality. The geometry of future perijoves will worsen for flyby animation purposes. So, this may by one of the last opportunities to take an according sequence.
Regarding observations of the polar CPCs, we'll likely get better results for the south than for the north due to image geometry and illumination.

Regarding latitude: The correlation of time and latitude won't be as strict as it has been for early orbits. This is another reason, why voting for features on certain latitudes would be less applicable.
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Bjorn Jonsson
post Dec 18 2017, 10:33 PM
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QUOTE (Gerald @ Dec 18 2017, 10:17 PM) *
The geometry of future perijoves will worsen for flyby animation purposes. So, this may by one of the last opportunities to take an according sequence.

Do you know if the geometry gets better again late in the mission?
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Gerald
post Dec 18 2017, 10:46 PM
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Provided, Juno gets an extension until 2021, and the instruments will still be healthy, the answer is yes, the geometry will improve again.
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Kevin Gill
post Dec 19 2017, 10:03 PM
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The Perijove 10 images are now being added to the raw gallery.

Attached thumbnail(s)
Attached Image
 
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Kevin Gill
post Dec 19 2017, 11:07 PM
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A quick processing of four of the Perijove 10 images.
Attached thumbnail(s)
Attached Image
Attached Image
Attached Image

Attached Image
 
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Gerald
post Dec 20 2017, 03:16 AM
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With some delay, here my set of drafts of the first half of PJ-10 close-ups. The second half of the PJ-10 close-up images are still to be downlinked.
This version is rendered without 3D information; so the close-ups are misaligned a bit. Image #002 shows two of the moons, the larger one should be Io, according to the title. Might be, that there is more, but it's what I've seen at first glance. Of course, there are lots of energetic particle hits.
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Sean
post Dec 20 2017, 11:20 AM
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This already looks like an exceptional set Gerald...and the lack of artifacts on closest approach is also very promising.

Great early processing by Kevin as well!

I can only imagine what Matt has up his sleeve...


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Gerald
post Dec 20 2017, 01:13 PM
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A tiny animation of the RGB images available thus far:
Attached Image

And here a larger version of some of them, first #018, and #020:
Attached Image
Attached Image


The images show some image noise, since they have been taken with TDI 1. There are also many energetic particle hits.

Last night, I've simply been too tired to render reasonable products. A small glitch (forgot to copy&paste Juno's rotation period from the image adjustment batch into the rendering batch) prevented an overnight run.
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Gerald
post Dec 20 2017, 01:16 PM
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PJ-10, #021:
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Gerald
post Dec 20 2017, 01:21 PM
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#022:
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Gerald
post Dec 20 2017, 01:23 PM
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#023:
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Gerald
post Dec 20 2017, 01:29 PM
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#024:
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