JIRAM mirror issues |
JIRAM mirror issues |
Sep 1 2023, 06:55 PM
Post
#1
|
|
Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Not really. A lot of the questions an Io mission would seek to answer can't really be answered by the Juno encounters. JunoCam doesn't have the resolution or the image cadence. JIRAM doesn't have the wavelength coverage to do eruption temperature measurements (and the stuck mirror basically makes the spectrometer not all that useful even for the wavelength span it CAN do). The encounter timing and encounter altitude isn't optimized for measuring libration, the induced magnetic field, or gravity field. Don't get me wrong, I am VERY excited about an Io encounter, but no, Juno is not a substitute for a dedicated mission. It does help fill the gap between Galileo/NH and an Io Observer/EC/JUICE. And it definitely adds so much needed data points, like acting as a "scout" for North polar geology.
The bigger concern is that CAPS will do what the Decadal did and think, well, IVO was successful in Discovery so why does it need to be a NF mission, neglecting a lot of programatic issues that helped make IVO successful last go around but won't be successful in the future, like putting Phase E back in the PI-managed cost. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
|
|
Sep 3 2023, 11:20 AM
Post
#2
|
|
Member Group: Members Posts: 238 Joined: 28-October 12 Member No.: 6732 |
|
|
|
Sep 7 2023, 02:25 AM
Post
#3
|
|
Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
You’re clear Mike. Scott Bolton brought it up at OPAG a few months back. The only public info is that the spin-compensation mirror is stuck and has been since PJ44. I have no knowledge beyond the fact that the publicly released JIRAM image from PJ49 was also smeared like PJ47.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
|
|
Sep 8 2023, 05:59 AM
Post
#4
|
|
Member Group: Members Posts: 238 Joined: 28-October 12 Member No.: 6732 |
Scott Bolton brought it up at OPAG a few months back. The only public info is that the spin-compensation mirror is stuck... Yeah, the recording can be found here. But it may take some time to get detailed information. Embargoed until October 26, 2100! |
|
|
Sep 11 2023, 09:50 PM
Post
#5
|
|
Member Group: Members Posts: 444 Joined: 1-July 05 From: New York City Member No.: 424 |
I trust that "2100" is a typo of some kind?
|
|
|
Lo-Fi Version | Time is now: 16th May 2024 - 04:55 PM |
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. |