Juno Perijove 23, November 03, 2019 |
Juno Perijove 23, November 03, 2019 |
Nov 8 2019, 10:34 PM
Post
#16
|
|
Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
|
|
|
Nov 10 2019, 04:25 PM
Post
#17
|
|
IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
|
|
|
Nov 20 2019, 11:50 PM
Post
#18
|
||||||||
IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
Image PJ23_18, approximately true color/contrast:
And with enhanced contrast/colors: These images are interesting because of a very long haze band among other things. The band appears to cast a brownish shadow on the cloud deck below in the enhanced images. Below is an image where a stronger contrast stretch has been applied. The shadow is indicated with arrows; the haze band itself appears slightly brighter and bluer/whiter than the surrounding areas. Latitudes are planetographic and longitudes in system 3. By the way I have noticed that for the PJ23 images I have needed to add a much smaller value to START_TIME than has been typical. I haven't processed a lot so far though (I have been concentrating on software development for increased automation and bigger accuracy when doing limb fits). It's possible that I've messed up which SPICE files I'm using although at first glance this didn't seem to be the case. The resulting images look perfectly normal despite this, i.e. good R/G/B alignment and nothing strange at the limb in map-projected images. |
|||||||
|
||||||||
Nov 21 2019, 01:10 AM
Post
#19
|
|
Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
By the way I have noticed that for the PJ23 images I have needed to add a much smaller value to START_TIME than has been typical. One thing I've found is that if possible you should wait for the reconstructed SPK files before trying to process, it has made a big difference for some orbits. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
|
|
|
Nov 25 2019, 09:18 PM
Post
#20
|
|||||||
IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
This is image PJ23_20 in approximately true color/contrast and enhanced versions:
The last image pair looks especially interesting. The enhanced image reveals pastel colors above and slightly left of center. The visual impression is that they seem to be associated with very bright clouds. These colors are a real feature and not a processing artifact. They are also visible in the true color/contrast version but look far more subdued there. The colors also appear in versions of image PJ23_20 processed by others, for example in Gerald's images. Hints of pastel colors have also been visible in some earlier JunoCam images (e.g. image PJ9_81) but they are particularly strong in this image. For cosmetic purposes, a small gap on Jupiter's limb near the bottom in the last image pair was filled using data from image PJ23_21. |
||||||
|
|||||||
Dec 3 2019, 09:11 PM
Post
#21
|
|
Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
PJ23 flyover on YouTube https://youtu.be/e2zk4m2hvys
|
|
|
Dec 9 2019, 07:08 PM
Post
#22
|
|
Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
By the way I have noticed that for the PJ23 images I have needed to add a much smaller value to START_TIME than has been typical. Mean and Stddev of my START_TIME adjustments for PJ23 are similar to other perijoves. (Using predict SPK since reconstructed isn't available yet). |
|
|
Lo-Fi Version | Time is now: 22nd September 2024 - 09:18 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |