Juno Science Results |
Juno Science Results |
Feb 28 2018, 06:48 AM
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#16
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
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Feb 28 2018, 04:33 PM
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#17
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Senior Member Group: Members Posts: 2106 Joined: 13-February 10 From: Ontario Member No.: 5221 |
It seems that for the foreseeable future, the only views from any of the gas giant atmospheres will remain those gorgeous artist's concepts (Don Dixon, Adolf Schaller, etc.)
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Mar 7 2018, 07:07 PM
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#18
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Today, four Nature papers about new findings by the Juno mission have been released online, but only the abstracts are free:
Clusters of cyclones encircling Jupiter’s poles A suppression of differential rotation in Jupiter’s deep interior Jupiter’s atmospheric jet streams extend thousands of kilometres deep Measurement of Jupiter’s asymmetric gravity field This allows to discuss the circumpolar cyclones on the missionjuno Think Tank site. |
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Mar 7 2018, 07:59 PM
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#19
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Additionally, John Rogers has released a version of the CPC observations on the BAA website, together with several animations we compiled over a little more than a year.
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Dec 13 2018, 04:26 PM
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#20
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Member Group: Members Posts: 133 Joined: 29-January 05 Member No.: 161 |
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Dec 16 2018, 10:57 PM
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#21
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
A very interesting video. I was particularly impressed by the SRU images; Jupiter's nightside in Ioshine!
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Dec 30 2018, 10:42 PM
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#22
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
I wonder when models will be able to simulate the patterns and the colors of the clouds. In the (pre-Juno) paper below, figure 5 shows the patterns, though doesn't include the microphysics/chemistry to show things like cloud opacity and colors.
https://www.researchgate.net/publication/25...ian_atmospheres (see figure 5a). -------------------- Steve [ my home page and planetary maps page ]
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Jan 15 2021, 04:53 PM
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#23
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
I've done some recent reading on Juno findings and moreover, tried to illustrate for myself how Juno science has fit into earlier understanding.
One simple kind of framing that is eternally hard to grasp with Jupiter is just how big the planet is and how limited in scope our studies from the top looking down are. Simply put, the Galileo Probe's descent (while instruments were operating) penetrated only 1/450th of the way to Jupiter's center. Juno has revealed that the part of the upper atmosphere that has winds is 3000 km deep – about 20 times the depth of the Galileo Probe's descent, and about 1/25th of the whole planet. There has been some beautiful work regarding Juno's observed anisotropy of ammonia in the upper atmosphere. https://www.nasa.gov/feature/jpl/shallow-li...juno-scientists In retrospect, it seems obvious: When a minority atmospheric component undergoes phase transitions, that allows for mechanisms that can segregate the compound considerably from one place to another (e.g., with water on Earth). It's also been wonderful that Juno and the end of the Cassini mission provided an almost simultaneous comparison of Jupiter and Saturn and the simple synthesis is that of the three layers in each planet – let's call the upper atmosphere with winds (A), a dense "mantle" of liquid metallic hydrogen (, and whatever core exists, apparently fuzzy in its boundaries ( C ) – Jupiter has a relatively small extent of A and C and is mainly B; Saturn, in contrast, has a much more even division of A, B, and C. We're still waiting to get an answer on the single question that most motivated Juno – how much core is there? However, the discovery of a fuzzy mantle seems to speak to the formation of Jupiter. This seemingly precludes any origin in which a gigantic rocky-metal core formed first and then the hydrogen-helium atmosphere was pulled from the protoplanetary nebula onto it. When they announced that an orbiter would be the choice of followup mission for addressing what the Galileo Probe failed to measure, I was skeptical but in retrospect, this was overwhelmingly the right choice. An entry probe could not possibly examine horizontal variations in Jupiter's structure and even with remarkable improvements in depth of penetration could not have probed as deeply as Juno has. I'm sure there's a lot more Juno science to come. This has really been a wonderful mission even aside from the breathtaking imagery which was never the inspiration for the mission in the first place. Studying the interior of Jupiter is a huge challenge and kudos to the people who conceived of this mission and made it real. Edit: Here's a nice recent synthesis of work on the deep interior. https://arxiv.org/pdf/1901.05697.pdf |
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Oct 26 2021, 09:46 PM
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#24
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Member Group: Members Posts: 427 Joined: 18-September 17 Member No.: 8250 |
From @NASASolarSystem tweet:
Join experts from our #JunoMission as they reveal new findings that provide a more comprehensive understanding of Jupiter's roiling atmosphere. Thursday, Oct. 28 3 p.m. EDT (1900 GMT) Watch here or at http://nasa.gov/live |
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Nov 30 2021, 04:20 PM
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#25
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Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
New results from Juno were published in the last 19 November issue of Science :
- "The depth of Jupiter’s Great Red Spot constrained by Juno gravity overflights"; - "Microwave observations reveal the deep extent and structure of Jupiter’s atmospheric vortices". (weblink : https://www.science.org/toc/science/374/6570 ) And look at the truly spectacular image published on the cover : any idea when it was taken ? Have you seen it before ? |
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Dec 1 2021, 01:07 AM
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#26
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Member Group: Members Posts: 447 Joined: 1-July 05 From: New York City Member No.: 424 |
The image processing is credited to Kevin Gill. He's a member here, and you could send him a PM, although he's not very active.
Or you could post the question on his twitter feed. https://twitter.com/kevinmgill |
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Dec 1 2021, 04:42 PM
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#27
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Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
The image processing is credited to Kevin Gill. He's a member here, and you could send him a PM, although he's not very active. Or you could post the question on his twitter feed. https://twitter.com/kevinmgill Thanks a lot Tom |
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Dec 1 2021, 05:36 PM
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#28
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
The image processing is credited to Kevin Gill. He's a member here, and you could send him a PM, although he's not very active. He's probably too busy processing Junocam images, when he's not working his day job at JPL on MSL ops. I always get a kick out of seeing his name on MSL project emails when he is on-shift. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Dec 1 2021, 09:16 PM
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#29
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Yeah - he's an awesome part of the OPGS and ECAM teams. I was so pleased when his name came up as someone who could join our little ECAM team - I jumped at the chance
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Dec 19 2021, 06:48 PM
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#30
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Member Group: Members Posts: 133 Joined: 29-January 05 Member No.: 161 |
#AGU21 Science Press briefing 17 December 2021
Latest results about the gas giant’s Great Blue Spot, polar cyclones, magnetosphere, rings, interior and Imagery contributions of the mission’s citizen scientists. -------------------- |
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