Juno, perijove 16, October 29, 2018 Options

[Gerald]

Here is an 8x enlarged draft of Io in PJ16, #01:


Here the other drafts of north polar PJ16 images.

The north polar images have been designed to obtain good data of the northern circum polar cyclones (CPCs), and in order to get data as close to the pole as possible.
We hope to be able to retrieve information about the dynamics of the CPCs.

Due to solar conjunction, the amount of data for PJ16 is limited. The instruments of the spacecraft were looking close to the ground track, without the HGA antenna pointing to Earth during flyby. For JunoCam, the overall focus is on good close-up images. Only few approach and departure images have been taken, actually no approach or departure sequence.

[Bjorn Jonsson]

A montage showing the PJ16_6 image in approximately true color/contrast (left) and with the effects of the varying illumination removed and the contrast increased (right):



Areas near the limb at lower left are overexposed since the exposure time was increased to better show details in the dimly lit areas near the north pole.

A subset from the metadata:

IMAGE_TIME = 2018-10-29T20:29:09.835
MISSION_PHASE_NAME = PERIJOVE 16
PRODUCT_ID = JNCE_2018302_16C00006_V01
SPACECRAFT_ALTITUDE = 47405.6 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = 81.6117
SUB_SPACECRAFT_LONGITUDE = 137.4188
TITLE = PJ16 North Pole at Minimum Emission Angle
Resolution at nadir: ~32 km/pixel

[Kevin Gill]

This is my first pass on Perijove 16, #6 (JNCE_2018302_16C00006_V01). Color is a bit tough due to the exposure mode, but good detail towards the pole.

[PhilipTerryGraha...]

The next six images from Perijove 16 are up on missionjuno, it seems!

[Kevin Gill]

A couple selections from Perijove 16 so far....


Jupiter - PJ16-13



Jupiter - PJ16-10



Jupiter - PJ16-9



Jupiter - PJ16-12

[Gerald]

Here are four of the PJ16 images, those without saturated areas, all rendered in a simulated 60x180 degrees cylindical fov:
#13:

[Gerald]

#12:

[Gerald]

#11, and #10:

[Gerald]

Here is a draft of #08:

Note a presumable lightning on the night side close to the terminator, and the visibility of Io's night side.

Here more drafts of part 2.
Here a more complete set of reprojections, part 2.
Here several map products of part 2, approximately illumination adjusted, and stretched to gamma=1 relative to radiometric values.

Reprojections, part 1.
Maps part 1, with gamma=1.
Maps part 1, with gamma=4.

[Sean]

Thanks Gerald. Lovely work from Kevin & Bjorn also.

Here is my pass on what has passed...

PJ16_part1


PJ16_13



PJ16_12



PJ16_11



PJ16_10

[Bjorn Jonsson]

Image PJ16_13 in approximately true color/contrast versions followed by enhanced versions:






Some metadata:

IMAGE_TIME = 2018-10-29T20:58:39.899
MISSION_PHASE_NAME = PERIJOVE 16
PRODUCT_ID = JNCE_2018302_16C00013_V01
SPACECRAFT_ALTITUDE = 7022.5 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = 40.1799
SUB_SPACECRAFT_LONGITUDE = 239.1319
TITLE = PJ16 North North Temperate Belt
Resolution at nadir: ~4.7 km/pixel

[Sean]

PJ16_part 1 ( Brian Swift script )


PJ16_13 detail ( Gerald Eichstädt )

[JRehling]

This is almost vertigo-inducing, but in a good way.

I feel safer than ever in saying that these images will produce important science related – at the very least – to the chromophores in Jupiter's clouds.

[Gerald]

Link to drafts and reprojections of PJ16, part 3.

It's five new images. I'll provide JPG copies of the reprojections here.

#14:

[Gerald]

#15:


#16:

[Gerald]

#17. and #18:

[Sean]

Perijove 16 update ( Brian Swift process )

[Sean]

Some updates using Gerald's source...

PJ16 so far...




Details...

[Sean]

For fun I also made some wallpapers for mobile phones from the recent sequence, all using Gerald's source for the processed works...

[Sean]

Jupiter and the Amazing Technicolor Dreamcoat

[jccwrt]

Here's a processed and cropped image #0011 (based off Gerald's draft), showing Io setting behind Jupiter's North Polar Hood.


Also playing around with trying to circularize the hyperbolic conic section that we see in the images near closest approach. It looks really unnatural to me, so I've been trying to 'fix' it. I've found a method that might work, here's the result I've gotten. (Base image is a processed version of Gerald's draft #0013.)



EDIT: Here's another "circularized" image from draft #0017

[Gerald]

Interesting approach, Justin.
I like the image with Io just above the horizon.

-----

The remaining PJ16 images are on Earth and online.
Here the according drafts, and reprojections.

Here on UMSF, I'll provide a JPG version of the reprojections of the RGBs, starting with PJ16 image #19:

[Gerald]

#20:

[Gerald]

#21, and #22:

[Gerald]

#23, and #24:

[Gerald]

#25, and #26:

[Gerald]

#27, #28, and #29:

[Gerald]

#30, #34. and #36:

[jccwrt]

Thanks, Gerald. Some work from the recent batch of drafts today.

Here's Io rising back above Jupiter's horizon in #0023.



If you look very carefully, the night side of Io is lit by first-quarter Jupitershine.



Here's the full-size, circularized version of #0023.

[Guest_avisolo_*]

This is awesome Gerald, here's my take on #26:
https://i.imgur.com/tVGCrBm.png

GIF:
https://i.imgur.com/wmjPKjK.gifv

Attached thumbnail(s)

 

[Gerald]

PJ16 HD flyby on YouTube.
Access to MP4 and stills.
For PJ16, TDI1 images, I've derived a specific reflectance distribution function (RDF), a 4th degree polynomial over two parameters. The RDF derived from PJ6, TDI2 seemed to reach the limit of its valid domain. The PJ6 RDF has been a 5th degree polynomial over two parameters. Here are auxillary data, some of which I've used to derive the polynomial.
The amount of required work, together with rendition times and my own laziness took a few days.

[Gerald]

A link to revised PJ16 reprojections, with other/better illumination adjustment. I probably won't have time to upload this version elsewhere in the short run.
[Some of the HTML files have been uploaded with a delay of a little less than half an hour. You might need to press the reload button in your browser.]

[Guest_avisolo_*]

A link to revised PJ16 reprojections, with other/better illumination adjustment. I probably won't have time to upload this version elsewhere in the short run.
[Some of the HTML files have been uploaded with a delay of a little less than half an hour. You might need to press the reload button in your browser.]

ASTONISHING GERALD! #23

Attached thumbnail(s)

 

[Bjorn Jonsson]

An enlarged and moderately enhanced view of Io from image PJ16_23:



Hints of some of the large scale surface markings are visible despite the very low resolution (~300 km/pixel in the original image data). For context, two computer generated images are also shown.

[Sean]

Here is my processed & re-timed version of Gerald's excellent work on perijove 16 flyby...


Details

[Guest_avisolo_*]

Perijove 16, Max Richter edition:
https://www.youtube.com/watch?v=o-TTun6qqbc

[Guest_avisolo_*]

Gerald's Jupiter Dolphin Redux:
https://www.flickr.com/photos/47222633@N05/46597320321/

Attached thumbnail(s)

 

[Sean]

Here is an enhanced product based on Gerald's output...

PJ16_25 'Dolphin'


Detail

[Sean]

PJ16_26 after Gerald...


Detail...

[Sean]

PJ16_24 detail, after Gerald...

[Sean]

Kevin M. Gill kindly allowed me to process his results of PJ16_25...

[Sean]

This picture made it into Nature's best of 2018...


https://www.nature.com/articles/d41586-018-07684-4

[jccwrt]

Congrats!

[Sean]

Another take on PJ16_25 based on Gerald's output... I wanted to compare with Kevin's...

[Sean]

PJ16_13_GE/SD Re-process

[Sean]

Here is an interpolated version...

[Brian Swift]

JunoCam PJ16 | Jupiter Fly-under Time-lapse | 360° VR, 8K, 60FPS at https://youtu.be/t2KRZ8ZTcZo