|
Author
|
Topic: [Discuss] NASA's Juno mission to Jupiter
|
Blackarrow
Member Posts: 3549
From: Belfast, United Kingdom
Registered: Feb 2002
|
posted 11-01-2017 06:48 PM
  
Can anyone explain the complete lack of coverage of Juno's Perijove 9 flyby of Jupiter? Each previous perijove pass was widely covered on the Internet, but I have been unable to find any images or information about perijove 9, which took place a week ago. Images from perijove 8 had already appeared a week later.At first, I thought it was something to do with Jupiter's solar conjunction (when the transmissions are disrupted), but that can't be the explanation: conjunction took place shortly before perijove 8, without any apparent delay in the processing of the images early in September. So why the delay with perijove 9? |
Robert Pearlman
Editor Posts: 49871
From: Houston, TX
Registered: Nov 1999
|
posted 11-01-2017 07:16 PM
On Oct. 24, NASA's Twitter account for Juno noted: Because this flyby occurs during solar conjunction we may not get confirmation of success until a week or so after the event. And then on Oct. 31: Hurrah! Telemetry from today's 1st post-solar conjunction passes confirm a successful flyby. Data will be coming down over the next week. |
Blackarrow
Member Posts: 3549
From: Belfast, United Kingdom
Registered: Feb 2002
|
posted 11-01-2017 08:22 PM
Aha! Thanks, Robert. I have checked back and I see that I was looking at the date for Jupiter at conjunction in 2016. However, as you correctly indicate, in 2017 Jupiter was at conjunction just before perijove 9, hence the delay in new images. |
Robert Pearlman
Editor Posts: 49871
From: Houston, TX
Registered: Nov 1999
|
posted 01-08-2021 12:57 PM
NASA has extended the Juno mission for four years, following an external review of its scientific productivity. The Juno spacecraft and its mission team have made discoveries about Jupiter's interior structure, magnetic field, and magnetosphere, and have found its atmospheric dynamics to be far more complex than scientists previously thought. Extended through September 2025, or its end of life (whichever comes first), the mission will not only continue key observations of Jupiter, but also will expand its investigations to the larger Jovian system including Jupiter's rings and large moons, with targeted observations and close flybys planned of the moons Ganymede, Europa, and Io. |
Neil DC
Member Posts: 193
From: Middletown, NJ, USA
Registered: May 2010
|
posted 01-08-2021 01:06 PM
Excellent news. JPL does such an amazing job of these missions. I know there are competing priorities, but I would love see them for Uranus and Neptune too. |
davidcwagner
Member Posts: 981
From: Albuquerque, New Mexico
Registered: Jan 2003
|
posted 07-06-2021 06:18 PM
Data from the NASA spacecraft's journey to Jupiter suggests that Mars may be shedding dust into interplanetary space. The moons, Deimos and Phobos, of Mars are a more likely dust source. |
lspooz
Member Posts: 456
From: Greensboro, NC USA
Registered: Aug 2012
|
posted 07-06-2021 07:26 PM
Pretty amazing findings (and while I don't recall many details of Dr. Brian May's dissertation about distribution of radial velocity of the zodiacal dust, after a little research the mass of dust there is estimated to be about that of an asteroid 30km in diameter, ~2 x 10e16 kg). Perhaps dust loss is impacted by the Martian moons. |
SpaceAholic
Member Posts: 5202
From: Sierra Vista, Arizona
Registered: Nov 1999
|
posted 07-06-2021 07:54 PM
Might not dust devils or dust storms be a possible source - ie the dust gets a nudge to the upper atmosphere where it is then stripped off into space by the solar winds. |
SpaceAholic
Member Posts: 5202
From: Sierra Vista, Arizona
Registered: Nov 1999
|
posted 09-28-2022 09:26 PM
For those not tracking, Juno is getting warmed up for a very close early morning Europa pass. On Thursday, Sept. 29, at 2:36 a.m. PDT (5:36 a.m. EDT), NASA’s Juno spacecraft will come within 222 miles (358 kilometers) of the surface of Jupiter's ice-covered moon, Europa. The solar-powered spacecraft is expected to obtain some of the highest-resolution images ever taken of portions of Europa's surface, as well as collect valuable data on the moon’s interior, surface composition, and ionosphere, along with its interaction with Jupiter's magnetosphere. |
Robert Pearlman
Editor Posts: 49871
From: Houston, TX
Registered: Nov 1999
|
posted 09-29-2022 02:43 PM
From software engineer Björn Jónsson (via Twitter): A very early and preliminary version of Europa image PJ45_1 obtained by Juno earlier today (Sept 29, 2022). This shouldn't be very far from Europa's true color; I expect to improve the color later with more careful processing though. North is up.  |
Headshot
Member Posts: 1173
From: Vancouver, WA, USA
Registered: Feb 2012
|
posted 01-28-2023 04:41 PM
Were any visible light images of Io, recorded during Juno's 47th flyby, recovered? I have not seen anything from that flyby. |
advertisement