Juno Extended Mission, Perijove 34-76 |
Juno Extended Mission, Perijove 34-76 |
Sep 2 2020, 08:05 PM
Post
#1
|
|
Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
At today's Outer Planet Assessment Group (OPAG) meeting, Scott Bolton gave a presentation on Juno, providing an update on the mission and providing more information on its extended mission proposal. The proposal has been sent to NASA and they expect a final decision later this year.
The proposed extended mission starts where the current one ends at perijove 34 in June 2021 and continues through orbit 76 in September 2025. The continued northward progression of the perijove latitude, and continued lower altitude of the ascending node, is going to enable a lot of great science both at Jupiter (higher resolution views of Jupiter's poles) and of its satellites. Most excitingly for me, Juno will perform several flybys of the Galilean satellites. This includes a 1000-km encounter with Ganymede next June during PJ34, a 320-km encounter with Europa in late 2022, and TWO Io flybys in early 2024 at an altitude of 1500 km. There are also a number of "Voyager-class" encounters with Ganymede, Europa, and Io between mid-2021 and mid-2025. The PDF for Scott Bolton's presentation can be found on the page for the OPAG meeting: https://www.lpi.usra.edu/opag/meetings/opag2020fall/ -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
|
|
Jun 9 2021, 09:09 PM
Post
#2
|
|
Senior Member Group: Members Posts: 2106 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Not that much of a chance. A 53 day orbit means a little less than 7 perijoves per year. Even multiplied by several years, unless one stretches the definition of 'close', I don't see it happening even in the extended mission, and certainly not enough to resolve Amalthea and co. as anything more than a point.
Cassini got many targets of opportunity because it stayed in the plane shared by the satellites, for many years, as well as the (generally) shorter orbits and much larger resolution on the camera, so the spacecraft didn't need to get particularly close. There were also many more small targets to choose from, of course. |
|
|
Jun 9 2021, 11:14 PM
Post
#3
|
|
Member Group: Members Posts: 154 Joined: 8-June 04 Member No.: 80 |
Cassini got many targets of opportunity because it stayed in the plane shared by the satellites, for many years, as well as the (generally) shorter orbits and much larger resolution on the camera, so the spacecraft didn't need to get particularly close. There were also many more small targets to choose from, of course. I think you meant Galileo. Cassini flew by Jupiter briefly in 2000. |
|
|
Jun 9 2021, 11:36 PM
Post
#4
|
|
Senior Member Group: Members Posts: 2106 Joined: 13-February 10 From: Ontario Member No.: 5221 |
|
|
|
Lo-Fi Version | Time is now: 23rd September 2024 - 09:32 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. |