Junocam Perijove 26 Images

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Io image from this perijove along with context. No plumes are visible at the terminator or the limb. There might be a plume deposit around Surt.

Drafts:
- part 1
- part 2
- part 3

Reprojections, gamma=4:
- part 1
- part 2
- part 3

Reprojections, gamma=1:
- part 1
- part 2
- part 3


maps, gamma=4:
- parts 1 and 2
- part 3


maps, gamma=1:
- parts 1 and 2
- part 3


maps, high-passed:
- parts 1 and 2
- part 3

Reprojections to common trajectory point:
- methane band image #25
- methane band image #17

Did you notice the shadow of Metis in images #33 and #34?

Video of PJ26 exaggerated color/contrast images scrolling by at Juno spin rate. https://youtu.be/--8kmD5VmSs

An experimental anaglyph created by using methane image PJ26_25 to construct a digital elevation model (DEM) of Jupiter's cloudtops. An enhanced mosaic of images PJ26_24 and PJ26_26 was then draped over the DEM:

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Two YouTube videos where we fly over the DEM:

https://youtu.be/ysXE6HBjVPQ
https://youtu.be/OhF7oiy3Mik

Vertical elevation differences are greatly exaggerated, probably at least by a factor 5 and possibly more than 10 but this is difficult to estimate accurately.

Two stills from the animations:

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As expected, in general bright clouds are higher in the atmosphere than darker clouds. An interesting feature is the many 'walls' of bright clouds, some of which encircle circular or elliptical spots/vortices. Some of the 'walls' have an orange tint. It is possible that at least in some cases this orange color really is due to a high altitude orange haze and that the 'walls' themselves are white

There is a paper submitted to Geophysical Research Letters on arxiv "Detection of a bolide in Jupiter’s atmosphere with Juno UVS" https://arxiv.org/pdf/2102.04511.pdf

Their detection time is 10 April 2020 at 12:57:10 UTC which puts it between PJ26_13 and PJ26_14.
Their location is planetocentric latitude of 53◦N and a System III longitude of 200◦W
They also state the location was not observed by JIRAM or JunoCam.

So, I'm wondering of someone here can easily lookup the Jupiter location/coordinates of JNCE_2020101_26C00014_V01-raw.png
pixel x:1541 y:3402, which looks to be the center of a few pixels wide (possibly elongated) bright red spot.

It will take me a a little while to determine the location with my tools.

Here is what the area looks like brightened some:
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Looks like about 71N 157W, so much farther north.
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But that does look like something.

Thanks. I'm coming up with 66.9N 157.7W (xyz={-24537.128481434785`, -10077.142367453582`, 62081.96436960365`})

Whatever it is, I can only detect it in the red band. So I wonder if Jupiter atmosphere is red-hot there.

A transient event that lasts for less than the interframe time will only show up in one band regardless of its actual color.

Here is a close up of spot in PJ26_14 enhanced raw image. The white marks are positioned at +/- 0.5º longitude and latitude from the spot peak.
Since it's a TDI=9 image, I don't have a good enough feel for how much of the size is due to blur vs actual illumination area of atmosphere.
I verified this area isn't imaged in PJ26_15.
The area is imaged in PJ26_13 and PJ26_12, but they have no detectable spot.
However, whoever is searching for lightning should take a look at PJ26_13 raw locations 553,1384 and 345,1825.
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Also, here is is a raw image file for PJ26_14 to which white pixels have been set along the SPICE computed limb and also around a small red spot visible on dark side of Jupiter at 66.9N 157.7W - https://www.missionjuno.swri.edu/junocam/processing?id=10084

And here is a map projected view (of the marked raw file) looking down on the red spot - https://www.missionjuno.swri.edu/junocam/processing?id=10085