NH at Jupiter, Planning the Jupiter encounter |
NH at Jupiter, Planning the Jupiter encounter |
![]()
Post
#101
|
|
![]() Member ![]() ![]() ![]() Group: Members Posts: 701 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 ![]() |
I think the Jupiter encounter deserves its own thread.
I've just been taking a first look at the Jupiter encounter geometry. You can do the same using Mark Showalter's excellent on-line ephemeris tools at the PDS rings node, which by good fortune happens to include a New Horizons ephemeris (calculated over a year ago) for our actual launch date, January 19th. We'll have an updated ephemeris soon, but this one's already good enough for planning. As Roby72 noted in the Star 48 thread, the satellites are (annoyingly) all on the opposite side of Jupiter at closest approach. We'll still get good views of all sides of Io because Io rotates in only 1.8 days and we'll be pretty close to Jupiter for that long. We'll get fairly good coverage on Europa too, for the same reason. But we won't get very close to Ganymede or Callisto. Luckily Io is our highest priority satellite target and Europa is next, so we'll do OK. |
|
|
![]() |
![]()
Post
#102
|
|
![]() Director of Galilean Photography ![]() ![]() ![]() Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 ![]() |
John,
Great news. I'm happy to have helped. Is there any chance of getting something of the eclipses? http://www.unmannedspaceflight.com/index.p...=2088&st=74 I'd love to see what the moons look like once they're in eclipse; I imagine they get quite a bit of light refracted from around Jupiter. Besides, it's the one KODAK_MMT Cassini can't offer for some time, because of Saturn's tilt. ![]() -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
|
|
![]()
Post
#103
|
|
![]() Member ![]() ![]() ![]() Group: Members Posts: 701 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 ![]() |
We'll be taking a lot of observations of the satellites in eclipse for scientific reasons- no need for special "scenic" observations. We'll be looking for auroral emissions from their atmospheres, and for Io, we'll also be imaging the glow of its volcanos. See for instance this Cassini movie of Io...
John. |
|
|
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 24th June 2024 - 08:29 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. |
![]() |