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Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini general discussion and science resultsCassini's Extended Mission, July 2008 to June 2010 |
 Feb 3 2007, 12:50 PM
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Junior Member  Group: Members Posts: 73 Joined: 14-June 05 From: Cambridge, MA Member No.: 411  |
QUOTE (pat @ Jan 30 2007, 10:18 AM)  The January PSG meeting is now in progress and the tour for extended mission is scheduled to be chosen on Thursday (Feb 1). There are 13 tours being considered OF4a, PF-3, PF-4, PF-6, PF-6h9, PF-7, PF-8, PF-9, PF-10, PF-11, PF-12 & PF-13 --plus 'tweaks' on these tours e.g. there is a PF-8a, PF-9a S-S-So ... has anybody heard anything? - John Sheff Cambridge, MA |
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Feb 4 2007, 03:35 AM
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 Member Group: Members Posts: 722 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
The winner is (drum roll please) PF6h9. Officially adopted on Thursday. I haven't sifted through all the details yet, but from my parochial point of view, I know it includes seven close Enceladus flybys, so that's good. Most of the science groups (Titan, Rings, Magnetosphere, Saturn, and Icy Satellites) were pretty happy with this choice- it packs in an amazing number of science opportunities.
John. |
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Feb 10 2007, 09:01 PM
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 Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162 |
Additionally, craters on the slopes (should there be any) will modify the local slope angles, and the subsequent darkening will be modified accordingly. As in the upper latitiudes of Iapetus, I suspect this trait of the darkening will be more pronounced in the lighter (higher elevation) areas.
We might see a concensus form that the dust from Phoebe idea just doesn't explain Cassini Regio . . . |
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Feb 11 2007, 12:12 AM
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 Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
QUOTE (tasp @ Feb 10 2007, 01:01 PM) Additionally, craters on the slopes (should there be any) will modify the local slope angles, and the subsequent darkening will be modified accordingly. As in the upper latitiudes of Iapetus, I suspect this trait of the darkening will be more pronounced in the lighter (higher elevation) areas. We might see a concensus form that the dust from Phoebe idea just doesn't explain Cassini Regio . . . I'll go out on a limb and opine that the dark stuff will not appear at all on the white peaks, and the stratigraphy will reveal that the darkening ended before the creation of the peaks (ergo, a very long time ago). |
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Feb 11 2007, 05:17 PM
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#5
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Member Group: Members Posts: 509 Joined: 2-July 05 From: Calgary, Alberta Member No.: 426 |
QUOTE (JRehling @ Feb 10 2007, 05:12 PM) I'll go out on a limb and opine that the dark stuff will not appear at all on the white peaks, and the stratigraphy will reveal that the darkening ended before the creation of the peaks (ergo, a very long time ago). That would be a wild result if it turned out to be true. It would be very difficult to explain the lack of bright craters in Cassini Regio if the dark material were that old. |
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