Juno, perijove 10, December 16, 2017 |
Juno, perijove 10, December 16, 2017 |
Jan 1 2018, 08:16 PM
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#46
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Thanks, AviSolo!
The vast majority of the merits ought to go to the many people working in the background, who make all this possible! A happy and successful year 2018 to all of you! I'm also looking forward to the creativity of the image processing community, which will contribute to the capabilities of all of us. Björn's blue sky is a first interesting item to add; thus far, I've obtained similar results only unintentionally, when I worked slightly inaccurately. --- In the meanwhile, most of the relevant still images of the (somewhat preliminary) PJ-10 flyby movie are online (the site of 2017-12-22 is updated). |
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Jan 3 2018, 10:50 PM
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#47
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
I'm also looking forward to the creativity of the image processing community, which will contribute to the capabilities of all of us. Björn's blue sky is a first interesting item to add; thus far, I've obtained similar results only unintentionally, when I worked slightly inaccurately. In a way, what I did was 'intentionally inaccurate'. I simply increased Jupiter's radii by 200 km when reprojecting the framelets to simple cylindrical projection and also when rendering the images. By doing this I don't lose the fuzzy/hazy limb visible in the original framelets. This requires very accurate pointing information and a very accurate value for the interframe delay, otherwise you 'lose' the blue sky at the southern and/or northern limb or you get incorrect color at the limb. |
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Jan 3 2018, 10:58 PM
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#48
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
And here are my versions of the PJ10_024 image (North North Temperate Belt) in approximately true color/contrast and in enhanced color, contrast and sharpness. Image PJ10_024 is centered near latitude 40 degrees north; this area has been especially photogenic in the JunoCam images.
These images do not include a bluish/fuzzy/hazy limb because I started working on them before I started my (successful) experiments involving the limb. Metadata: IMAGE_TIME = 2017-12-16T17:47:51.438 MISSION_PHASE_NAME = PERIJOVE 10 PRODUCT_ID = JNCE_2017350_10C00024_V01 SPACECRAFT_ALTITUDE = 8786.9 SPACECRAFT_NAME = JUNO SUB_SPACECRAFT_LATITUDE = 38.3574 SUB_SPACECRAFT_LONGITUDE = 287.7498 TITLE = North North Temperate Belt Resolution at nadir: ~5.9 km/pixel |
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Jan 4 2018, 06:19 PM
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#49
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Member Group: Members Posts: 149 Joined: 18-June 08 Member No.: 4216 |
And here are my versions of the PJ10_024 image (North North Temperate Belt) in approximately true color/contrast and in enhanced color, contrast and sharpness. Image PJ10_024 is centered near latitude 40 degrees north; this area has been especially photogenic in the JunoCam images. The round, bluish feature with the dark centre in frame #24 reminds me of the SL-9 impact scars back in 1994. |
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Jan 4 2018, 10:15 PM
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#50
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
In his recent, first PJ-10 report, John Rogers (BAA) suggested, that these dark patches might be soot as a result of lighting activity in thunderstorms.
Here a heavily enhanced version of a still of my prelimnary PJ-10 flyby animation: (I think, that I should upload this to missionjuno.) |
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Jan 12 2018, 09:41 PM
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#51
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Jan 31 2018, 12:07 PM
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#52
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
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Feb 1 2018, 01:19 AM
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#53
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
That is something I never anticipated could be done
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Feb 3 2018, 12:36 AM
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#54
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Member Group: Members Posts: 259 Joined: 23-January 05 From: Seattle, WA Member No.: 156 |
Good job, Gerald! Are those Jupiter's rings at the top in the last frame?
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Feb 3 2018, 01:54 AM
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#55
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Senior Member Group: Members Posts: 2511 Joined: 13-September 05 Member No.: 497 |
Are those Jupiter's rings at the top in the last frame? Those are stray light artifacts. In fact, not to be a buzzkill, but all of it could be stray light artifacts. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Feb 3 2018, 02:33 AM
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#56
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Senior Member Group: Members Posts: 2079 Joined: 13-February 10 From: Ontario Member No.: 5221 |
I can't remember. the rings have already been caught with Junocam, correct? I know there was the star tracker image back on Perijove 1 ( https://photojournal.jpl.nasa.gov/catalog/PIA21644 ). At least, they would be something for Junocam to catch now that the perjoves are gradually going into shadow...
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Feb 3 2018, 03:29 AM
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#57
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Senior Member Group: Members Posts: 2511 Joined: 13-September 05 Member No.: 497 |
I can't remember. the rings have already been caught with Junocam, correct? Yes, barely. https://www.missionjuno.swri.edu/junocam/processing?id=368 It's not the perijoves that are going into shadow, it's the approach side of the planet roughly 180 degrees from perijove. At any rate I don't think the geometry is very favorable for seeing the rings, else they might have been visible in the PJ10 images. Junocam was never intended to look for things that were very dark. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Feb 3 2018, 06:01 AM
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#58
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Member Group: Members Posts: 403 Joined: 18-September 17 Member No.: 8250 |
I can't remember. the rings have already been caught with Junocam, correct? My take on the rings from PJ3. Includes a few more framelets, so Orion is also visible. https://www.missionjuno.swri.edu/junocam/processing?id=2576 |
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Feb 7 2018, 11:06 PM
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#59
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
Here is a GIF time-lapse from the PJ10_33 and PJ10_36 images:
The images were obtained about 12 minutes apart. The time-lapse reveals the cyclonic motion of the STB Ghost which is the big feature at and slightly below center. North is up and the images are in simple cylindrical projection. Jupiter in Perijove-10's Io shine, noisy proof of principle: This is an amazing image even though it's not exactly the prettiest image of Jupiter I've seen. |
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Mar 8 2018, 12:10 AM
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#60
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
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