Juno Perijove 23, November 03, 2019 Options

[Gerald]

Some of the PJ23 data are already available.

I'll start with a JPG version of several selected "pretty pictures". Colors are a white-balanced in an arbitrary way. The images went through several post-processing steps.

#17, #18:


#19, #20:

[Gerald]

#21, #22:




And a crop of #22:

[Gerald]

#23, #24:


And #25:


I'll continue with less processed versions...

[Gerald]

#07, #09:


#10, #12:

[Gerald]

#14, #16:

[Gerald]

#17:


#18:


#19:


#20:

[Gerald]

#21:

[Gerald]

#22. #23:

[Gerald]

#24, and #25:

[Gerald]

Link to drafts of PJ23, part 1.
Link to roughly illumination-adjusted reprojections, with a gamma-stretch of 4.0 relative to radiometric values.
Maps with gamma=1.
Maps with gamma=4.
High-passed maps with local contrast normalization.

The PNG version of the "pretty" images, and some of the reprojections with gamma=4 are uploaded to missionjuno (and approved).

[monitorlizard]

#21, #22:




And a crop of #22:

Gerald, all I can say about the crop of image #22 (in post 2) is I see spots before my eyes and they're red and they're great! Nice job.

[Sean]

Here is PJ23_21 from Gerald's source...

[Kevin Gill]

Initial Perijove 23 composites:


Jupiter - Perijove 23 - Approach Composite



Jupiter - Perijove 23 - Composite

[Kevin Gill]

Views of Io on Perijove 23. On both, Jupiter and Io were processed separately. Jupiter is using a fisheye equisolid projection (less aggressively on the 2nd image). Io was processed directly from the raw image without using any reprojection. There was some Jupitershine visible on the dark side of Io and I attempted to respect that without allowing too much noise. I didn't notice any obvious volcanos.



Jupiter & Io - PJ23-25



Jupiter & Io - PJ23-28

[Bjorn Jonsson]

Image PJ23_23 in an approximately true color/contrast and enhanced version:



Separate images showing areas farther to the left and right will follow later.

This is a very high resolution image, here Juno was only ~5200 km above Jupiter's cloud tops. The perijove latitude is now at latitude ~25 degrees north instead of closer to the equator as it was during the earlier orbits. The areas now imaged at the highest resolution are usually more spectacular visually than the fuzzier and more bland areas closer to the equator. As a result, lots of cloud shadows and other high contrast features are now imaged at very high resolution.

By the way I noticed that there has been some 'geometric' change at PJ23 that manifests itself as small gaps in the blue channel at the right edge of some of my processed images. This is different from all of the other orbits where the missing data at the right edge was red:



I'm not yet sure exactly what has changed but at least this isn't something that required any changes to my processing pipeline - everything still works perfectly.