Rev 227, Nov 30th - Dec 13th |
Rev 227, Nov 30th - Dec 13th |
Nov 26 2015, 07:28 PM
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#1
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Details for this revolution are available here
This is the orbit I've been looking forward to for some time as it affords us a closer glimpse at Atlas, Prometheus and Epimetheus. In fact, Cassini approaches the latter two at a closer range than it will for the remainder of the mission, and observations are planned for both, as well as Atlas. This, despite having to turn the spacecraft and use the high-gain antenna as a shield during ring-plane crossing to avoid any possible collisions with debris in the ring-plane. This must have been an extra-specially complicated sequence of observations to plan, as it all happens at or around periapse. I'm really looking forward to another view of Atlas particularly - can't wait!!! Jase |
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Dec 8 2015, 08:28 PM
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#16
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Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Doubtless Aegaeon's imaging sequence on the next orbit has been designed to take account of that moon's orbital uncertainty. Add to that it's a very close, fairly fast flyby, of a moon that has a low albedo, and is tiny even compared to Atlas... Yep, the observation is basically a series of two-frame mosaics. Should help to ensure that Aegaeon is in the FOV. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 9 2015, 10:20 PM
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#17
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Solar System Cartographer Group: Members Posts: 10193 Joined: 5-April 05 From: Canada Member No.: 227 |
-------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Dec 10 2015, 12:30 PM
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#18
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
I've added artificial color to the WAC clear-filtered frame of Epimetheus, approximating the view a human might have from the same vantage point.
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Dec 10 2015, 09:33 PM
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#19
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Has anybody else tried their hand at the Atlas images? Here are my quick-and-dirty versions, but I know others can do better.
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Dec 11 2015, 03:20 AM
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#20
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
Eli's had a crack at Atlas already, Emily:
http://www.unmannedspaceflight.com/index.p...st&p=228437 This is my attempt at the Prometheus obs with a semi-automated method of removing the digital smuts: -------------------- |
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Dec 11 2015, 04:15 AM
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#21
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
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Dec 11 2015, 10:36 AM
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#22
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Up late working on that one Ian!
Very nice. |
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Dec 12 2015, 06:41 AM
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#23
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
Thanks Jase! Yeah, I work best after the Moon rises it seems ....
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Mar 14 2017, 06:04 PM
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#24
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
Looking at the PDS data for this medium-range flyby of Atlas, I realized a number of frames at the start of the sequence were taken against the backdrop of Saturn's night-side. Thanks to the faint illumination of the cloud decks with ring-shine, an extreme contrast stretch of the images reveals the moon's equatorial bulge and southern hemisphere in profile.
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Mar 14 2017, 06:42 PM
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#25
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
Great catch!
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Mar 14 2017, 09:15 PM
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#26
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Nice work!
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Guest_Steve5304_* |
Mar 14 2017, 09:45 PM
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#27
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Guests |
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