Juno Perijove 26, Junocam Images Incoming! (April 10, 2020) |
Juno Perijove 26, Junocam Images Incoming! (April 10, 2020) |
Apr 14 2020, 01:00 PM
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Junior Member Group: Members Posts: 48 Joined: 9-August 19 Member No.: 8644 |
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Apr 14 2020, 06:34 PM
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
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. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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May 7 2020, 05:23 PM
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
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? |
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May 10 2020, 02:05 AM
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Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
Video of PJ26 exaggerated color/contrast images scrolling by at Juno spin rate. https://youtu.be/--8kmD5VmSs
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Jun 2 2020, 09:21 PM
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
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 |
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Feb 24 2021, 05:46 AM
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Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
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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Feb 24 2021, 07:37 AM
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
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. Looks like about 71N 157W, so much farther north. But that does look like something. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Feb 24 2021, 11:30 AM
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#8
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Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
Looks like about 71N 157W, so much farther north. Thanks. I'm coming up with 66.9N 157.7W (xyz={-24537.128481434785`, -10077.142367453582`, 62081.96436960365`}) QUOTE But that does look like something. Whatever it is, I can only detect it in the red band. So I wonder if Jupiter atmosphere is red-hot there. |
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Feb 24 2021, 03:47 PM
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#9
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
Whatever it is, I can only detect it in the red band. A transient event that lasts for less than the interframe time will only show up in one band regardless of its actual color. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Feb 25 2021, 12:54 AM
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Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
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 |
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