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Posted by: palebutdot Apr 14 2020, 01:00 PM

https://www.missionjuno.swri.edu/junocam/processing?phases%5b%5d=PERIJOVE+26

Posted by: volcanopele Apr 14 2020, 06:34 PM

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.

Posted by: Gerald May 7 2020, 05:23 PM

Drafts:
- http://junocam.pictures/gerald/uploads/20200414/
- http://junocam.pictures/gerald/uploads/20200415b/
- http://junocam.pictures/gerald/uploads/20200418/

Reprojections, gamma=4:
- http://junocam.pictures/gerald/uploads/20200415/
- http://junocam.pictures/gerald/uploads/20200415c/
- http://junocam.pictures/gerald/uploads/20200421/

Reprojections, gamma=1:
- http://junocam.pictures/gerald/uploads/20200415a/
- http://junocam.pictures/gerald/uploads/20200415d/
- http://junocam.pictures/gerald/uploads/20200421a/


maps, gamma=4:
- http://junocam.pictures/gerald/uploads/20200417/
- http://junocam.pictures/gerald/uploads/20200421b/


maps, gamma=1:
- http://junocam.pictures/gerald/uploads/20200417a/
- http://junocam.pictures/gerald/uploads/20200421c/


maps, high-passed:
- http://junocam.pictures/gerald/uploads/20200417b/
- http://junocam.pictures/gerald/uploads/20200421d/

Reprojections to common trajectory point:
- http://junocam.pictures/gerald/uploads/20200415e/
- http://junocam.pictures/gerald/uploads/20200416/

Did you notice the shadow of Metis in images http://junocam.pictures/gerald/uploads/20200415c/JNCE_2020101_26C00033_V01-raw.bmp_reproj_30px_30.127500s_cx809.0_000000_taylorIncEm.bmp_sphC_.html and http://junocam.pictures/gerald/uploads/20200415c/JNCE_2020101_26C00034_V01-raw.bmp_reproj_30px_30.127500s_cx809.0_000000_taylorIncEm.bmp_sphC_.html?

Posted by: Brian Swift May 10 2020, 02:05 AM

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

Posted by: Bjorn Jonsson Jun 2 2020, 09:21 PM

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:

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:



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

Posted by: Brian Swift Feb 24 2021, 05:46 AM

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:

Posted by: mcaplinger Feb 24 2021, 07:37 AM

Looks like about 71N 157W, so much farther north.

But that does look like something.

Posted by: Brian Swift Feb 24 2021, 11:30 AM

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.

Posted by: mcaplinger Feb 24 2021, 03:47 PM

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

Posted by: Brian Swift Feb 25 2021, 12:54 AM

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.

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