Rev 126 - Feb 4-22, 2010 - Mimas (main target), Tethys, Iapetus, Calypso and mutual events too |
Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini's ongoing mission and raw images  |
Rev 126 - Feb 4-22, 2010 - Mimas (main target), Tethys, Iapetus, Calypso and mutual events too |
 Feb 14 2010, 10:30 PM
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#31
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 Bloggette par Excellence  Group: Admin Posts: 3968 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454  |
Coolness! And good eyes, Explorer1. I noticed those too
 Given that there's evidence for landsliding-type motion on other small worlds like Itokawa and Eros, I'd speculate wildly that's what we're looking at -- some kind of flow of the surface fluff toward local gravity lows, possibly induced by the vibration from small impacts.Neat neat neat! Emily -------------------- |
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Feb 14 2010, 10:55 PM
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#32
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 Member Group: Members Posts: 618 Joined: 13-February 10 From: Vancouver, British Columbia Member No.: 5221 |
So when is the Mimas image down-link? This is the best view we'll get of Mimas for a long time to come, right? The suspense is just.... ugh!
-------------------- To a body of infinite size there can be ascribed neither centre nor boundary... Thus the Earth no more than any other world is at the centre. -Giordano Bruno, 1584.
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Feb 14 2010, 11:04 PM
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#33
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 Member Group: Members Posts: 642 Joined: 23-December 05 From: Forest of Dean Member No.: 617 |
I know; isn't it brilliant? Anticipation's half the fun! Every encounter is like a mini launch, orbit insertion or EDL
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Viva software libre! |
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Feb 14 2010, 11:24 PM
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#34
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 The Poet Dude Group: Moderator Posts: 5546 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
QUOTE (Explorer1 @ Feb 14 2010, 10:55 PM)  The suspense is just.... ugh! (Obi Wan Kenobi voice on) Patience, young Explorer... impatience leads to anger, anger leads to hate, hate leads to... well, not a very nice place at all... (voice off) Seriously, just enjoy it. We're spoiled rotten nowadays, and checking again and again to see if new images are up is all part of the excitement. -------------------- |
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Feb 14 2010, 11:31 PM
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#35
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 Senior Member Group: Moderator Posts: 2818 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Tomorrow 5:30am MST/12:30pm UTC, +/- 2 hours
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Feb 15 2010, 11:05 AM
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#36
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 Member Group: Members Posts: 486 Joined: 19-February 05 From: France, close to Paris (& 5mn drive from Meudon Observatory) Member No.: 172 |
I just like very much this oval moon (Cassini pic from Sept 2009). Enjoy !
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Feb 15 2010, 11:41 AM
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#37
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 Interplanetary Dumpster Diver Group: Moderator Posts: 4045 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Here we are!!!
http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213591 http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213654 http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213598 -------------------- |
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Feb 15 2010, 12:15 PM
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#38
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 Senior Member Group: Admin Posts: 2423 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
Mimas...quick stitch
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Feb 15 2010, 12:16 PM
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#39
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 Senior Member Group: Members Posts: 3534 Joined: 1-October 05 From: Croatia Member No.: 523 |
QUOTE (tedstryk @ Feb 15 2010, 12:41 PM) Check out that darkening creeping up the crater walls! It's looks like sediment left over from liquid evaporation. -------------------- |
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Feb 15 2010, 12:18 PM
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#40
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 Member Group: Members Posts: 521 Joined: 20-April 05 From: Poland Member No.: 299 |
Damn, the best picture is a bit overexposed.
 http://saturn.jpl.nasa.gov/multimedia/imag...7/N00151520.jpg -------------------- Free software for planetary science (including Cassini Image Viewer).
http://members.tripod.com/petermasek/marinerall.html |
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Feb 15 2010, 12:19 PM
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#41
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The Poet Dude Group: Moderator Posts: 5546 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Feb 15 2010, 12:24 PM
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#42
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Senior Member Group: Members Posts: 3534 Joined: 1-October 05 From: Croatia Member No.: 523 |
QUOTE (peter59 @ Feb 15 2010, 01:18 PM) Damn, the best picture is a bit overexposed. I don't think it's overexposed. More looks like the effect of very low phase on brightness and contrast. Also, who knows what the raw contrast stretch did here. -------------------- |
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Feb 15 2010, 12:25 PM
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#43
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 IMG to PNG GOD Group: Moderator Posts: 1323 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
QUOTE (tedstryk @ Feb 15 2010, 11:41 AM) Here we are!!! http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213591 http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213654 http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213598 The last one is obviously Herschel. Very few craters on Herschel's floor and all of them are small. I expected to see some landslides on the crater rim's inside but there are none (or at least no big ones). One thing to keep in mind: The images are heavily contrast stretched because Mimas more than fills the field of view - no black space is visible. So I suspect that what's black in this image really isn't in black (in shadow). There are some WA context images, for example this one: http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213720 A nice NA global image: http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213675 A closeup of Herschel with some black space visible - the contrast stretch doesn't mess things up completely in that case: http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213654 Mimas' rough and uneven limb: http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213606 Should be plenty of images for a nice stereo-derived DEM of Herschel . The fact that the subsolar point is close to Herschel might be a problem though.
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Feb 15 2010, 12:26 PM
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#44
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Senior Member Group: Moderator Posts: 2818 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
QUOTE (Stu @ Feb 15 2010, 05:19 AM) Here is an even better version  http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=213678 -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Feb 15 2010, 12:30 PM
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#45
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IMG to PNG GOD Group: Moderator Posts: 1323 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
QUOTE (ugordan @ Feb 15 2010, 12:16 PM) Check out that darkening creeping up the crater walls! It's looks like sediment left over from liquid evaporation. The image is heavily contrast stretched since no black space is visible so I think the darkening is only slightly darker than the stuff above it. Still very interesting. EDIT: From the image someone said was overexposed I now see the contrast is higher than I expected (I'm looking at the images as I type  ).
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