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Juno perijoves 2 and 3, October 19 and December 11, 2016
Candy Hansen
post Oct 26 2016, 04:44 PM
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A lot has happened and it seemed like a good time to start a new post. We will be staying in 53 day orbits until the project has a full understanding of the risks that may or may not be associated with reducing the orbit period to 14 days per our previous plan.
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Bjorn Jonsson
post Jul 10 2019, 09:02 PM
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I recently decided to take a look at data from the early perijoves when my JunoCam processing pipeline didn't work as well as it does now (or not at all ;-). In fact it's striking to see the big improvement in image quality from everyone here processing JunoCam images when early images from e.g. PJ3 are compared to the recent ones. For example I processed a few PJ4 and PJ5 images when they were released but now I want to reprocess them. But first I decided to process something I haven't processed earlier: PJ3 images.

This is image PJ3_114 which shows the SEB west of the Great Red Spot.

Approximately true color/contrast:

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Enhanced versions:

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Lots of cloud shadows and vertical relief are visible, especially in the 'central' image (the one where the limb isn't visible). The solar elevation angle is low in these images - in the early perijoves, closest approach occurred much closer to the terminator than later in the mission (at the time of this writing perijove 20 is the most recent perijove). The color coded image below shows the solar elevation angle in one of the above images. In contrast, the subsolar point is visible in some of the PJ20 images.

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Below are details from the first true color/contrast image above enlarged by a factor of 3. The image shows Jupiter's horizon near the evening terminator. Jupiter's bright and blue evening sky is clearly visible at the limb. In the right half of the image there are also possible hints of a slightly more reddish color at lower altitudes than the blue color. This is probably a real feature although a processing artifact cannot be completely ruled out. I have processed a number of JunoCam images where Jupiter's sky is visible at the limb. Of these images, this is probably the one that best shows the Jovian sky.

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Posts in this topic
- Candy Hansen   Juno perijoves 2 and 3   Oct 26 2016, 04:44 PM
- - Candy Hansen   At the press conference last week I showed many be...   Oct 26 2016, 04:46 PM
|- - Candy Hansen   At this moment we are trying to find the best time...   Oct 26 2016, 04:49 PM
|- - Roman Tkachenko   QUOTE (Candy Hansen @ Oct 26 2016, 08:46 ...   Oct 27 2016, 12:56 AM
- - Glenn Orton   Until and unless we figure out how to fix or find ...   Oct 28 2016, 09:34 PM
|- - JRehling   I'm curious, should the engine problem be unre...   Oct 28 2016, 11:38 PM
- - elakdawalla   Here's a good article from Spaceflight Now tha...   Oct 28 2016, 11:53 PM
|- - JRehling   Thanks for the link, Emily. That's pretty reas...   Oct 29 2016, 03:19 AM
- - elakdawalla   I was going to make a new thread for PJ3, but I re...   Nov 2 2016, 07:25 PM
- - Gerald   Voting for PJ3 targets started. It will last anoth...   Nov 25 2016, 04:45 PM
- - MichaelJWP   Normally an 'interested lurker' here, but ...   Dec 12 2016, 10:35 AM
|- - mcaplinger   QUOTE (MichaelJWP @ Dec 12 2016, 02:35 AM...   Dec 12 2016, 03:29 PM
|- - MichaelJWP   QUOTE (mcaplinger @ Dec 12 2016, 03:29 PM...   Dec 12 2016, 06:58 PM
- - Gerald   New images have been scheduled to be published on ...   Dec 12 2016, 12:00 PM
- - Holder of the Two Leashes   Here are the plans for P3: LINK Last update on Tw...   Dec 12 2016, 02:07 PM
- - Gerald   Goldstone is downlinking data with 119.57 kb/sec: ...   Dec 12 2016, 02:27 PM
- - mcaplinger   PJ3 data posted -- https://www.missionjuno.swri.ed...   Dec 13 2016, 10:51 PM
- - Gerald   A very first idea of #03C00107: (image: NASA / JP...   Dec 14 2016, 01:20 AM
- - Gerald   Other selected and enhanced Perijove-3 images as a...   Dec 14 2016, 02:22 AM
- - Gerald   Preliminary PJ3 close-up RGBs, decompanded, color-...   Dec 14 2016, 02:23 PM
- - Gerald   ... this is an ad-hoc attempt of post-processing w...   Dec 14 2016, 02:32 PM
|- - JRehling   Gerald, your work is very nice! Are you sure y...   Dec 15 2016, 09:12 PM
- - mcaplinger   The Junocam ring image in processed form is buried...   Dec 14 2016, 06:40 PM
- - Explorer1   It's still an impressive first, seeing them fr...   Dec 14 2016, 08:38 PM
|- - mcaplinger   QUOTE (Explorer1 @ Dec 14 2016, 12:38 PM)...   Dec 14 2016, 09:07 PM
- - Explorer1   Oops, I should've been more specific, I meant ...   Dec 14 2016, 09:48 PM
|- - mcaplinger   QUOTE (Explorer1 @ Dec 14 2016, 01:48 PM)...   Dec 14 2016, 10:07 PM
- - Gerald   Thanks! I felt like diving through the Mandelb...   Dec 16 2016, 04:13 PM
- - Gerald   That's an enhanced crop of an intermediate map...   Dec 16 2016, 05:28 PM
- - Gerald   This may serve as a small status update. I'm w...   Dec 18 2016, 06:12 AM
- - Gerald   This gif shows an attempt to fit the images into a...   Dec 18 2016, 09:07 AM
|- - fredk   QUOTE (Gerald @ Dec 18 2016, 10:07 AM) I...   Dec 18 2016, 03:50 PM
- - mcaplinger   AFAIK, GR effects have never been part of the NAIF...   Dec 18 2016, 05:03 PM
- - Gerald   I was just looking for a simple solution to adjust...   Dec 18 2016, 06:32 PM
|- - mcaplinger   QUOTE (Gerald @ Dec 18 2016, 10:32 AM) I...   Dec 18 2016, 07:14 PM
|- - fredk   QUOTE (Gerald @ Dec 18 2016, 07:32 PM) Si...   Dec 18 2016, 07:20 PM
- - Gerald   Well, in order to solve the question about whether...   Dec 18 2016, 07:59 PM
- - fredk   Taking this thread even farther from Jupiter, the ...   Dec 18 2016, 08:33 PM
- - Gerald   By the equivalence principle "acceleration = ...   Dec 18 2016, 09:17 PM
|- - mcaplinger   QUOTE (Gerald @ Dec 18 2016, 01:17 PM) In...   Dec 19 2016, 04:28 PM
- - Gerald   For those, who like to use the MSSS version of the...   Dec 19 2016, 06:33 PM
- - Gerald   Crescent Jupiter: For the PJ3 Approach sequence, I...   Dec 21 2016, 08:00 PM
- - Ant103   All I want to tell you Gerald : you are doing an A...   Dec 21 2016, 08:31 PM
|- - Gerald   QUOTE (Ant103 @ Dec 21 2016, 09:31 PM) Al...   Dec 21 2016, 09:33 PM
- - scalbers   Regarding GR, in my numerical integration software...   Dec 21 2016, 09:09 PM
- - scalbers   Gerald - here is the correction term for the orbit...   Dec 21 2016, 11:11 PM
- - Gerald   This is an animated gif of preliminarily processed...   Dec 22 2016, 06:46 AM
|- - mcaplinger   QUOTE (Gerald @ Dec 21 2016, 10:46 PM) No...   Dec 22 2016, 07:11 AM
|- - fredk   QUOTE (mcaplinger @ Dec 22 2016, 08:11 AM...   Dec 22 2016, 03:16 PM
- - Gerald   I see. Then the 'I' is likely used as an a...   Dec 22 2016, 08:00 AM
- - eliBonora   Here a couple of PJ3 processing and a test anaglyp...   Dec 22 2016, 08:27 AM
- - Gerald   Here a synopis of the PJ03 Approach Movie images: ...   Dec 22 2016, 02:29 PM
- - mcaplinger   BTW, if people don't know about the work of Jo...   Dec 22 2016, 02:52 PM
|- - Gerald   QUOTE (mcaplinger @ Dec 22 2016, 03:52 PM...   Dec 23 2016, 12:46 AM
- - scalbers   Also still used quite a bit in numerical weather p...   Dec 22 2016, 05:38 PM
- - Gerald   PJ03 departure movie, RGB images, decompanded, lin...   Jan 3 2017, 01:57 AM
- - Gerald   PJ03 Departure and Marble Movie, browsable RGB ima...   Jan 3 2017, 04:10 AM
- - Gerald   Methane band PJ03 Departure Movie images (reduced,...   Jan 3 2017, 10:31 PM
- - Gerald   ... And an example of a false-color image using th...   Jan 3 2017, 10:34 PM
- - Gerald   One of four slightly different preliminary PJ03 an...   Jan 6 2017, 03:06 PM
- - Roman Tkachenko   Crescent Jupiter with Great Red Spot   Jan 9 2017, 04:11 PM
- - Gerald   Jupiter's vortices at and near the south pole,...   Jan 10 2017, 05:12 PM
- - PhilipTerryGraham   Another lucky person has made it into the NASA Pho...   Jan 20 2017, 01:48 AM
- - Roman Tkachenko   Jupiter's South Pole (PJ-3)   Feb 1 2017, 08:42 PM
- - wildespace   PIA21378 - http://photojournal.jpl.nasa.gov/catalo...   Feb 19 2017, 10:25 AM
- - Gerald   Despite Juno's safe mode around PJ02, JunoCam ...   Jun 28 2017, 04:25 PM
- - Gerald   Synopsis of Perijove-03 subset: Larger subset of...   Sep 4 2017, 01:20 AM
- - Gerald   Last night, I've rendered three more versions ...   Nov 6 2017, 02:12 PM
- - Gerald   The upload issue appears to be fixed. Great job...   Nov 6 2017, 04:26 PM
- - Gerald   Perijove-03 flyby movie is on Youtube, and on juno...   Dec 7 2017, 06:34 PM
- - Sean   Wow...the south pole is looking really good.   Dec 7 2017, 07:48 PM
- - Sean   PJ03_114 [G.Eichstadt] Details   Dec 12 2017, 09:54 PM
- - Sean   PJ03_107 [G.Eichstadt] Details   Dec 13 2017, 12:54 AM
- - Sean   PJ03_117 [G.Eichstadt] Details   Dec 13 2017, 04:19 AM
- - Sean   PJ03_118 [G.Eichstadt] Details More comp...   Dec 13 2017, 06:16 PM
- - Gerald   The anticyclone in PJ-03, #107, is called NN-LRS-1...   Dec 13 2017, 09:10 PM
- - Sean   PJ03_117 update + detail [G.Eichstadt]   Feb 19 2018, 05:21 PM
- - Sean   New detail pass on PJ03_114 [G.Eichstadt]   Feb 26 2018, 01:34 AM
- - Sean   PJ03_120 updated + details [G.Eichstadt]   Feb 26 2018, 12:34 PM
- - Sean   PJ03_120_v3 Yet another pass + details...   Mar 6 2018, 01:47 AM
- - Sean   Yet another pass at PJ03_120...   Aug 19 2018, 10:23 AM
- - Floyd   Seem hard to imagine you improving on your previou...   Aug 19 2018, 03:55 PM
- - Sean   Thanks Floyd... the truth is for a couple of perij...   Aug 19 2018, 08:52 PM
- - Bjorn Jonsson   I recently decided to take a look at data from the...   Jul 10 2019, 09:02 PM
- - adamg   Contents of pds-imaging.jpl.nasa.gov/data/juno/JNO...   Jan 17 2020, 09:03 PM
- - adamg   first elements in pds-imaging.jpl.nasa.gov/data/ju...   Jan 17 2020, 09:13 PM
- - adamg   JNCE_2016287_02C10029_V01 and JNCE_2016346_03C0011...   Jan 31 2020, 11:35 PM
|- - Brian Swift   QUOTE (adamg @ Jan 31 2020, 03:35 PM) Fee...   Feb 3 2020, 03:26 AM
- - adamg   The top edge of the second image looks a little bi...   Feb 3 2020, 10:26 PM
- - Bjorn Jonsson   There is also clearly some misalignment far from t...   Feb 3 2020, 11:48 PM
- - Brian Swift   QUOTE (Bjorn Jonsson @ Feb 3 2020, 03:48 ...   Feb 4 2020, 10:58 PM
- - Bjorn Jonsson   QUOTE (Brian Swift @ Feb 4 2020, 10:58 PM...   Feb 7 2020, 01:01 AM
- - Brian Swift   QUOTE (Bjorn Jonsson @ Feb 6 2020, 05:01 ...   Feb 7 2020, 06:55 AM
- - Gerald   QUOTE (Brian Swift @ Feb 7 2020, 07:55 AM...   Feb 7 2020, 11:25 AM
|- - Brian Swift   QUOTE (Gerald @ Feb 7 2020, 03:25 AM) And...   Feb 11 2020, 09:53 PM
|- - Gerald   QUOTE (Brian Swift @ Feb 11 2020, 10:53 P...   Feb 15 2020, 12:55 AM
- - Bjorn Jonsson   QUOTE (Brian Swift @ Feb 7 2020, 06:55 AM...   Feb 9 2020, 11:40 PM
- - Brian Swift   QUOTE (Bjorn Jonsson @ Feb 9 2020, 03:40 ...   Feb 11 2020, 08:07 PM
- - Bjorn Jonsson   QUOTE (Brian Swift @ Feb 11 2020, 08:07 P...   Feb 19 2020, 12:59 AM
- - Brian Swift   QUOTE (Bjorn Jonsson @ Feb 18 2020, 04:59...   Feb 19 2020, 06:32 AM
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