My Assistant
Site Message
Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini's ongoing mission and raw images2007 Dione Imaging |
 May 23 2007, 03:23 PM
Post
#1
|
||
 SewingMachine  Group: Members Posts: 316 Joined: 27-September 05 From: Seattle Member No.: 510  |
The latest in the poster series includes global perspectives of Dione up through the late April pass. Note the very similar views in the upper right, taken 6 June and 2 August 2005 respectively. DEMs of this hemisphere have already been produced. Natural color images (last in top row and first in 2nd row) by ugordan.
-------------------- ...if you don't like my melody, i'll sing it in a major key, i'll sing it very happily. heavens! everybody's all aboard? let's take it back to that minor chord...
Exploitcorporations on Flickr (in progress) : https://www.flickr.com/photos/135024395@N07/ |
|
 |
 
|
|
 |
|
May 23 2007, 04:14 PM
Post
#2
|
|
 Member Group: Members Posts: 146 Joined: 23-August 06 From: Vriezenveen, Netherlands Member No.: 1067 |
Nice work!
|
|
|
|
|
May 23 2007, 05:18 PM
Post
#3
|
|
 Senior Member Group: Members Posts: 3652 Joined: 1-October 05 From: Croatia Member No.: 523 |
One can really see the benefit of color imaging at Dione.
-------------------- |
|
|
|
|
May 23 2007, 05:45 PM
Post
#4
|
|
|
SewingMachine Group: Members Posts: 316 Joined: 27-September 05 From: Seattle Member No.: 510 |
QUOTE (ugordan @ May 23 2007, 10:18 AM)  One can really see the benefit of color imaging at Dione. Alternate history: The twister dumps Dorothy's house on the surface of Dione instead of Oz. She walks to the door with Toto in her arms. In addition to both of their lungs explosively decompressing in the near vacuum, the scene looks uninspiring in glorious color. Motion pictures remain in black and white for much of the remainder of the century. -------------------- ...if you don't like my melody, i'll sing it in a major key, i'll sing it very happily. heavens! everybody's all aboard? let's take it back to that minor chord...
Exploitcorporations on Flickr (in progress) : https://www.flickr.com/photos/135024395@N07/ |
|
|
|
|
May 23 2007, 11:06 PM
Post
#5
|
|
 IMG to PNG GOD Group: Moderator Posts: 2257 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
QUOTE (Exploitcorporations @ May 23 2007, 03:23 PM) The latest in the poster series includes global perspectives of Dione up through the late April pass. Note the very similar views in the upper right, taken 6 June and 2 August 2005 respectively. DEMs of this hemisphere have already been produced. Are these DEMs available anywhere on the WWW? Or only as crude color coded images in PDF files (abstracts/papers)? |
|
|
|
|
May 24 2007, 02:47 AM
Post
#6
|
||
|
SewingMachine Group: Members Posts: 316 Joined: 27-September 05 From: Seattle Member No.: 510 |
Unfortunately, the ones available on the web are all of the color-coded variety for the time being. I've attempted to round them up here for one stop shopping...even with the low resolutions they are very instructive. The depth of the "snowman" crater complex on Iapetus is impressive.
EDIT: Elevation scales on top center models corrected to +/- 5km -------------------- ...if you don't like my melody, i'll sing it in a major key, i'll sing it very happily. heavens! everybody's all aboard? let's take it back to that minor chord...
Exploitcorporations on Flickr (in progress) : https://www.flickr.com/photos/135024395@N07/ |
|
|
|
|
|
|
May 24 2007, 02:33 PM
Post
#7
|
|
|
Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
Compliled?
 Seriously, that is a very cool way of showing these moons. |
|
|
|
|
May 24 2007, 03:33 PM
Post
#8
|
|
|
SewingMachine Group: Members Posts: 316 Joined: 27-September 05 From: Seattle Member No.: 510 |
QUOTE (remcook @ May 24 2007, 07:33 AM) Compliled? I was wondering if that sounded goofy. I was thinking compilation in terms of an album...composted, confused, or cannibalized might be more appropriate.  Exploitcorporations, Image Vulture -------------------- ...if you don't like my melody, i'll sing it in a major key, i'll sing it very happily. heavens! everybody's all aboard? let's take it back to that minor chord...
Exploitcorporations on Flickr (in progress) : https://www.flickr.com/photos/135024395@N07/ |
|
|
|
|
May 24 2007, 03:47 PM
Post
#9
|
|
|
Senior Member Group: Members Posts: 3652 Joined: 1-October 05 From: Croatia Member No.: 523 |
Actually, I think he was pointing out the spelling error there
-------------------- |
|
|
|
|
May 24 2007, 06:03 PM
Post
#10
|
|
 Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
QUOTE (Exploitcorporations @ May 23 2007, 10:45 AM) Alternate history: And giving nightmares to children everywhere.
The twister dumps Dorothy's house on the surface of Dione instead of Oz. She walks to the door with Toto in her arms. In addition to both of their lungs explosively decompressing in the near vacuum, the scene looks uninspiring in glorious color. Motion pictures remain in black and white for much of the remainder of the century. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
|
|
|
|
May 24 2007, 06:12 PM
Post
#11
|
|
|
SewingMachine Group: Members Posts: 316 Joined: 27-September 05 From: Seattle Member No.: 510 |
QUOTE (ugordan @ May 24 2007, 08:47 AM) Actually, I think he was pointing out the spelling error there Yeesh. My noise-to-signal ratio is rising with each post.  Exploitcorporations, UMSF Spelling Bee Champion -------------------- ...if you don't like my melody, i'll sing it in a major key, i'll sing it very happily. heavens! everybody's all aboard? let's take it back to that minor chord...
Exploitcorporations on Flickr (in progress) : https://www.flickr.com/photos/135024395@N07/ |
|
|
|
|
May 25 2007, 11:26 AM
Post
#12
|
|
|
Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
quite the opposite!
|
|
|
|
|
May 25 2007, 12:05 PM
Post
#13
|
|
 Merciless Robot Group: Admin Posts: 8791 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
QUOTE (Exploitcorporations @ May 23 2007, 07:47 PM) The depth of the "snowman" crater complex on Iapetus is impressive. Dione has a couple of pretty deep ones, too, which is perhaps not too surprising given the existence of the canyons. What's weird from EC's comparative montage is how very different Iapetus is in "texture" with respect to the other icy moons. Iapetus overall looks sort of like a partially melted/rapidly cooled ball of wax... -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
|
|
|
|
|
May 25 2007, 07:52 PM
Post
#14
|
||
 Member Group: Members Posts: 288 Joined: 28-September 05 From: Orion arm Member No.: 516 |
QUOTE (nprev @ May 25 2007, 01:05 PM) .... Iapetus overall looks sort of like a partially melted/rapidly cooled ball of wax... Yes, of course.
Snowman B and C look like imprints in sludge. There seems to be no bowl shaped crater bottom inside them... like they were filled up and faltened with some kind of partially melted/rapidly cooled material. There isn't even a rim visible between B and C like the rim between A and B. A final interpretation due to low resolution is difficult - and a close fly-by by CASSINI over the 'Snowman' will most probably not happen. Maybe september's saturnshine images will give some more infos - but certainly with low contrast! Bye. |
|
|
|
|
|
|
May 25 2007, 09:41 PM
Post
#15
|
|
|
Merciless Robot Group: Admin Posts: 8791 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Good observations, TA.
Makes me wonder if maybe Iapetus has a much higher fraction of organics in its crustal composition than the other icy moons. Something seems different about the surface's melt/freeze point behavior given the odd geometry of the craters. Alternatively (or, for that matter, possibly additionally), could there have been a significant global heating event after the 'Snowman' and other major impact features were formed, such as tidal heating from orbital braking due to capture by Saturn? Shooting from the hip, here: Iapetus seems more and more like an outer-system body out of place instead of a "native" Saturnian moon...NH may provide some interesting cross-reference data in 2015. Admins, sorry for the OT excursion, but EC's montage rightly stimulates this line of discussion; please feel free to move to a suitable Iapetus thread!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
|
|
|
|
 |
|
Lo-Fi Version | Time is now: 16th December 2024 - 04:54 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. |
|
