Juno perijove 4, February 2, 2017 |
Juno perijove 4, February 2, 2017 |
Jan 20 2017, 11:16 PM
Post
#1
|
|
Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
It's time to open a perijove-4 thread.
Voting is open for another two days. So, don't hesitate too long. Besides the discussion and the POIs on the mission page, you might consider John Roger's detailed discussion of several interesting features. If everything goes well, all instruments will be switched on. |
|
|
Feb 19 2017, 07:21 PM
Post
#2
|
|
Member Group: Members Posts: 306 Joined: 4-October 14 Member No.: 7273 |
I took a look a while back, but that was still when the mission was planning to run 14-day orbits.
Since the moons' orbital planes are inclined to the ecliptic and Jupiter's equatorial plane, Callisto's shadow doesn't currently fall on the planet and won't do so again until sometime around 2020. The track of Ganymede's shadow is also edging north and will continue producing shorter eclipses until about the middle of next year when the eclipse tracks start drifting south again. There should be a series of Ganymede eclipses occurring near the north pole around then. Europa's eclipse track is currently located along the North Temperate Belt, while Io's is located along the northern edge of the North Equatorial Belt. Like Ganymede's eclipse track, they're also drifting north at the moment, but being closer to the planet, the track positions won't change as substantially. Right now I'd say Ganymede and Europa have the best chance for close eclipse photos, given the smaller field of view at lower latitudes and the lower likelihood of Io's shadow catching JunoCam's eye during a perijove pass. There's a very tiny chance that the shadows of Amalthea would be visible during a JunoCam pass. I'd need an updated list of perijove encounter times, but it should be trivial to determine if Juno could see eclipses up close. |
|
|
Lo-Fi Version | Time is now: 25th September 2024 - 03:40 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. |