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Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini's ongoing mission and raw images2007-09-10 Iapetus (rev 49): Pre-flyby discussion, Closest approach of this odd moon |
  Jan 20 2007, 11:35 PM
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#101
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 Member  Group: Members Posts: 288 Joined: 28-September 05 From: Orion arm Member No.: 516  |
Hi,
let me open this thread on the closest Iapetus flyby on September 10th later this year. Hopefully we'll get some more clues to solve the mysteries of this odd moon, like the origin of the equatorial ridge and the brightness differance... First, some new infos given by Tilmann Denk from FU Berlin: CASSINI will pass Iapetus in roughly 1600 km. An UVIS star occultation of sigma Sagitarii will now occur about 1 hour before closest approach - instead of during it. This will now allow an additional window for high resolved pics of the highest known parts of the equatorial ridge at 160° (phase between ~140° and ~30°) now, apparently a decisive approvement of this encounter. Detailed planing can be started soon...   Bye. |
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TritonAntares 2007-09-10 Iapetus (rev 49): Pre-flyby discussion Jan 20 2007, 11:35 PM
ugordan Steve, they're listed as 8 BOTSIMs so yes, the... Aug 24 2007, 04:39 PM Mariner9 Oh my gawd. This blog is amazing. It's wh... Aug 24 2007, 08:12 PM Exploitcorporations Holy shiskies...we are going to have our hands ful... Aug 24 2007, 11:46 PM belleraphon1 Just saw this post.
Holy Freekah Moly!!... Aug 25 2007, 02:11 AM nprev Iapetus is, just maybe, the first example of a lar... Aug 25 2007, 02:57 AM
mchan It would have had to migrate inward a bit. Aug 25 2007, 04:39 AM
ugordan QUOTE (nprev @ Aug 25 2007, 03:57 AM) Iap... Aug 25 2007, 03:09 PM nprev QUOTE (ugordan @ Aug 25 2007, 08:09 AM) A... Aug 25 2007, 05:34 PM Decepticon When was that picture of Iapetus taken?
I don... Aug 25 2007, 03:28 PM ugordan It was taken on June 26, 2006 at a distance of 1.4... Aug 25 2007, 03:38 PM monitorlizard I'm a bit confused (in other words, in my norm... Aug 25 2007, 09:40 PM ugordan As far as I know Tilmann Denk's page only show... Aug 25 2007, 09:50 PM elakdawalla The VIMS is boresighted with ISS and has a field o... Aug 26 2007, 04:10 PM ugordan QUOTE (elakdawalla @ Aug 26 2007, 05:10 P... Aug 26 2007, 06:55 PM Juramike QUOTE (ugordan @ Aug 26 2007, 02:55 PM) A... Aug 27 2007, 03:10 PM ugordan QUOTE (Juramike @ Aug 27 2007, 04:10 PM) ... Aug 27 2007, 07:24 PM JRehling QUOTE (ugordan @ Aug 26 2007, 11:55 AM) A... Aug 27 2007, 04:21 PM Juramike QUOTE (JRehling @ Aug 27 2007, 12:21 PM) ... Aug 27 2007, 05:47 PM tasp Would like to take the opprotunity to go over the... Aug 27 2007, 04:02 PM nprev QUOTE (tasp @ Aug 27 2007, 09:02 AM) We s... Aug 27 2007, 06:50 PM JRehling QUOTE (nprev @ Aug 27 2007, 11:50 AM) You... Aug 27 2007, 08:02 PM nprev QUOTE (JRehling @ Aug 27 2007, 01:02 PM) ... Aug 27 2007, 11:44 PM Juramike QUOTE (tasp @ Aug 27 2007, 12:02 PM) [sel... Aug 27 2007, 08:25 PM ugordan Pan (Atlas?) wouldn't be a good analogy. It sw... Aug 27 2007, 10:44 PM tasp Some further info:
For an object in a very low or... Aug 28 2007, 05:55 AM edstrick The spacing and size distribution of Saturn's ... Aug 28 2007, 07:41 AM tasp Deposition can occur at multiple locations around ... Aug 28 2007, 02:03 PM elakdawalla Tilmann just emailed me to say that they've up... Aug 28 2007, 10:39 PM tasp Here is the worst diagram ever submitted to UMSF:
... Aug 29 2007, 02:29 PM tasp I am also curious to examine the full lengths of t... Aug 29 2007, 02:38 PM dvandorn Unfortunately, tasp, if the ridge was built up lik... Aug 30 2007, 02:26 AM tasp The highest pinnacle gets to form the wedge ramp (... Aug 30 2007, 04:15 AM ngunn Yes it's great to see these ideas aired again ... Aug 30 2007, 10:25 AM ugordan QUOTE (ngunn @ Aug 30 2007, 11:25 AM) Can... Aug 30 2007, 11:00 AM tasp Eerie, I woke up this morning thinking about a ... Aug 30 2007, 02:11 PM ngunn Thanks ugordan and tasp for those replies.
On th... Aug 30 2007, 03:18 PM tasp 2 sub moons is way cool to think about, especially... Aug 30 2007, 05:11 PM AlexBlackwell An interesting paper in press with Advances in Spa... Aug 30 2007, 05:25 PM tasp Distinguishing between wedge ramps resultant from ... Aug 30 2007, 05:29 PM tasp Hi Alex Blackwell !
I was hoping to have you... Aug 30 2007, 05:44 PM Stu QUOTE (tasp @ Aug 30 2007, 06:44 PM) The ... Aug 30 2007, 06:20 PM AlexBlackwell QUOTE (tasp @ Aug 30 2007, 07:44 AM) How ... Aug 30 2007, 06:31 PM tasp Excerpt refers to the ridge (singular) and I feel ... Aug 31 2007, 03:19 AM tasp Need to revise and clarify something;
the locatio... Aug 31 2007, 04:21 AM JRehling QUOTE (tasp @ Aug 30 2007, 09:21 PM) The ... Aug 31 2007, 04:58 AM CAP-Team Since a couple of days this topic is more about th... Aug 31 2007, 07:09 AM djellison There's been a hiatus in raw's because of ... Aug 31 2007, 07:15 AM ugordan They also added an additional inconspicuous link t... Aug 31 2007, 07:26 AM elakdawalla QUOTE (ugordan @ Aug 31 2007, 12:26 AM) T... Aug 31 2007, 04:39 PM MarcF In the following LPSC XXXI meeting abstract by T. ... Aug 31 2007, 10:50 AM ugordan To me the "Voyager mountains" being whit... Aug 31 2007, 11:00 AM tasp Understanding exactly what happens at the contact ... Aug 31 2007, 01:17 PM tasp Regarding the extent of Cassini Regio, there is a ... Aug 31 2007, 01:36 PM scalbers QUOTE (tasp @ Aug 31 2007, 01:36 PM) Rega... Sep 1 2007, 05:49 PM Holder of the Two Leashes Just a quick post to note the fact that Cassini pa... Aug 31 2007, 03:00 PM Gsnorgathon Raws aplenty are goin' up. They look awfully u... Sep 1 2007, 01:33 AM tasp I have been thinking about disrupting sub moons ab... Sep 1 2007, 05:10 AM tasp What are we going to see from the 9/10 pictures ??... Sep 1 2007, 02:49 PM tasp Interestingly, the 'black crud' is (to my ... Sep 1 2007, 06:05 PM tasp I saw a posting on another forum regarding possibl... Sep 1 2007, 06:21 PM scalbers Regarding tasp's post #160 some of the Voyager... Sep 1 2007, 09:58 PM tasp Thanx for the update.
Maybe that will be the mone... Sep 1 2007, 11:32 PM scalbers Greetings,
For grins (while waiting for some addi... Sep 2 2007, 12:46 AM Greg Hullender Tasp, are you talking about the Roche limit of IAP... Sep 2 2007, 04:57 AM tasp TNSS chapter on planetary rings has an equation fo... Sep 2 2007, 03:28 PM tasp I have been considering identification of the big ... Sep 2 2007, 03:50 PM ngunn Greg: I can't do those calculations either but... Sep 2 2007, 04:52 PM tasp While I consider orbits about Iapetus to be among ... Sep 2 2007, 05:34 PM tasp Regarding a possible 'parent' crater for t... Sep 2 2007, 05:39 PM tasp Was playing around with different rotation periods... Sep 3 2007, 01:09 AM Greg Hullender ngunn: I'm partly going on the fact that lunar... Sep 3 2007, 04:41 AM Rob Pinnegar As far as I remember, the destabilizing effect of ... Sep 3 2007, 09:19 AM ngunn Thanks Rob I was going to say the tidal disruption... Sep 3 2007, 10:11 AM Rob Pinnegar As I recall, a number of vastly-overexposed images... Sep 3 2007, 04:33 PM nprev Hmm. Rob and/or Rlorenz, purely thinking here in e... Sep 3 2007, 04:43 PM Phil Stooke That's a very dodgy proposition. If the targe... Sep 3 2007, 05:09 PM tasp Regarding tidal effects on a ring system inside... Sep 3 2007, 09:19 PM tasp OK, have done some number crunching regarding the ... Sep 3 2007, 09:57 PM helvick Are you sure of those Roche Limit numbers - I get ... Sep 3 2007, 10:20 PM tasp r * 2.423-r = R
Where r = 718
R = ~1000 km Sep 3 2007, 11:09 PM marsman Tidal forces are often cited as a key driving mech... Sep 4 2007, 02:02 AM tasp {we might want to start a seperate thread for this... Sep 4 2007, 02:29 AM helvick Oops - my bad. I wasn't paying sufficient atte... Sep 4 2007, 07:01 AM TritonAntares Hi again,
8 Iapetus crescent images are up now on ... Sep 4 2007, 08:15 AM TritonAntares Hello,
here another nice overview about the planne... Sep 5 2007, 11:30 PM akuo This closy flyby is almost like a new mission to a... Sep 4 2007, 08:35 AM tasp Upon reviewing pictures of Atlas, it is hard to im... Sep 4 2007, 02:30 PM tasp Regarding efficiencies we might expect for a glanc... Sep 4 2007, 02:37 PM tasp My take for the 'risk' of Iapetan ring sys... Sep 4 2007, 02:45 PM tasp {the 3 preceeding posts were originally all in one... Sep 4 2007, 02:50 PM AscendingNode Here's an animation of the flyby:
http://ww... Sep 4 2007, 11:52 PM ilbasso Oh, sweet lordy mama...we're going to be feast... Sep 5 2007, 03:00 AM Holder of the Two Leashes Here is a concise map posted on the JPL Cassini si... Sep 5 2007, 11:23 PM elakdawalla Tilmann says their website is now almost complete.... Sep 5 2007, 11:36 PM scalbers Very nice processing showing some good detail in E... Sep 5 2007, 11:55 PM Bjorn Jonsson A completely different topic: Looking closely at s... Sep 6 2007, 12:14 AM Mariner9 Yes. This is a big one.
We only get a truely clo... Sep 6 2007, 01:08 AM tedstryk QUOTE (Mariner9 @ Sep 6 2007, 01:08 AM) O... Sep 6 2007, 01:45 AM Rob Pinnegar Could someone point out to the appropriate person ... Sep 6 2007, 01:29 AM  |
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