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New Iapetian image series

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TritonAntares

Sep 11 2006, 09:27 PM

Post #1

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Group: Members
Posts: 288
Joined: 28-September 05
From: Orion arm
Member No.: 516

Hi,
CASSINI has transmitted 184 pics (!) over the last days.
Here five takeouts, 3-4x enlargement:

Date: 2009-09-06
Distance: 2.228.548 km
Filters: CL1 and CL2

Date: 2009-09-08
Distance: 3.215.284 km
Filters: P120 and GRN

Date: 2009-09-08
Distance: 3.216.610 km
Filters: P60 and GRN

Date: 2009-09-09
Distance: 3.390.271km
Filters: P60 and GRN

Date: 2009-09-09
Distance: 3.427.313 km
Filters: P120 and GRN

Maybe somebody is able to combine some of those images to show more details.

Bye.

Replies

tasp View Member Profile	Feb 19 2007, 03:38 PM Post #2
Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162	We might note a correlation between degree of darkening, altitude, and longitude in the light/dark coverage. Seems like a mathematical model or simulation analyzing sun exposure (insolation), local slope, altitude, longitude, and the Iapetan parameters of ~80 day long 'days' and introduction of a gaseous discoloring agent at aphelion could be made. Program needs to be recursive, the darkening modifies the local temperature and facilitates further darkening. Interesting if someone comes up with some random topology to run through the program to see if it generates Cassini Regio like stains on the object.

Posts in this topic

TritonAntares New Iapetian image series Sep 11 2006, 09:27 PM

Rob Pinnegar They certainly took enough images this time around... Sep 11 2006, 10:43 PM

Rob Pinnegar At the end of November, Cassini will be a bit over... Sep 24 2006, 05:07 AM

angel1801 I just used the Solay System simulator and I have ... Sep 24 2006, 05:27 AM

TritonAntares Hi, here what you're talking about: Should gi... Sep 24 2006, 05:54 PM

TritonAntares Hi again, new release in the NASA/JPL image galler... Sep 25 2006, 04:59 PM

Decepticon I can't wait to see that! Sep 24 2006, 10:09 PM

CAP-Team [something went wrong here] Sep 25 2006, 11:52 AM

CAP-Team I created the same image with Xplanet and Steve Al... Sep 25 2006, 11:56 AM

Rob Pinnegar QUOTE (CAP-Team @ Sep 25 2006, 05:56... Sep 25 2006, 12:56 PM

tedstryk I think that super-resolution processing may be ne... Sep 25 2006, 02:11 PM

ugordan QUOTE (Rob Pinnegar @ Sep 25 2006, 01:56 ... Sep 25 2006, 02:43 PM

TritonAntares QUOTE (Rob Pinnegar @ Sep 25 2006, 01:56 ... Sep 25 2006, 03:39 PM

CAP-Team I used NASA's space simulator a lot in the pas... Sep 25 2006, 10:20 PM

tedstryk As TritonAntares said, the key is that the illumin... Sep 25 2006, 10:50 PM

Rob Pinnegar QUOTE (CAP-Team @ Sep 25 2006, 04:20... Sep 26 2006, 01:56 PM

TritonAntares Hi! QUOTE Yeah, that area was imaged in August... Sep 27 2006, 12:15 PM

ugordan The lower left image is the same as the one I made... Sep 27 2006, 12:53 PM

TritonAntares Hi! CASSINI took another few Iapetus images a... Sep 30 2006, 01:49 PM

TritonAntares Hi! CASSINI took another few Iapetus far dist... Nov 8 2006, 10:11 AM

ugordan Here's the simulated pixel size Iapetus will a... Nov 8 2006, 12:10 PM

TritonAntares Hi once again, CASSINI took another four Iapetus ... Nov 17 2006, 01:06 PM

TritonAntares Hi, CASSINI took a series of 41 Iapetean far dist... Nov 28 2006, 08:49 PM

TritonAntares Hello again, I always wondered about the dark pat... Dec 6 2006, 11:44 AM

angel1801 I would not know either. But we will know alot bet... Dec 6 2006, 12:29 PM

nprev That recent small sequence is really striking to m... Sep 30 2006, 05:35 PM

tasp I suspect a thermo-reactive gas is introduced into... Oct 1 2006, 05:27 PM

nprev That is both an interesting and highly creative hy... Oct 2 2006, 01:39 AM

tasp The gas comes from Titan's atmosphere. This i... Oct 2 2006, 01:24 PM

Phil Stooke The latest two Iapetus images, enlarged and merged... Dec 8 2006, 09:29 PM

TritonAntares Hi, nice pic Phil - I didn't notice the 2 orig... Dec 8 2006, 11:19 PM

TritonAntares Hallo, one probably better resolved and enlarged p... Jan 9 2007, 10:49 AM

ugordan QUOTE (TritonAntares @ Jan 9 2007, 11:49 ... Jan 9 2007, 11:49 AM

TritonAntares Hi, I've just checked the JPL raw images page ... Feb 16 2007, 08:50 PM

Ian R Colour composite with Lightness channel consisting... Feb 13 2007, 12:10 PM

Rob Pinnegar Is Roland the prominent crater at the 11 o'clo... Feb 14 2007, 01:34 AM

TritonAntares QUOTE (Rob Pinnegar @ Feb 14 2007, 02:34 ... Feb 14 2007, 02:58 PM

Michael Capobianco QUOTE (Rob Pinnegar @ Feb 13 2007, 08:34 ... Feb 14 2007, 02:59 PM

Ant103 My version made from one RVB picture (saturation a... Feb 14 2007, 09:44 AM

ugordan Pink Iapetus, now that's something you don... Feb 14 2007, 11:16 AM

JRehling QUOTE (ugordan @ Feb 14 2007, 03:16 AM) P... Feb 14 2007, 05:08 PM

ugordan QUOTE (JRehling @ Feb 14 2007, 06:08 PM) ... Feb 14 2007, 05:25 PM

Phil Stooke ugordan: "Pink Iapetus, now that's somet... Feb 14 2007, 04:07 PM

nprev Huh...that "yin-yang" aspect makes Iapet... Feb 14 2007, 11:25 PM

JRehling QUOTE (nprev @ Feb 14 2007, 03:25 PM) Huh... Feb 15 2007, 12:00 AM

tasp QUOTE (nprev @ Feb 14 2007, 05:25 PM) or ... Feb 15 2007, 04:24 AM

alan Confirmed http://space.jpl.nasa.gov/cgi-bin/wspace... Feb 16 2007, 09:27 PM

ugordan No way! Mega cool! Stretched color snapsh... Feb 16 2007, 09:35 PM

elakdawalla Way nifty. Here's an animation of the Februar... Feb 16 2007, 10:20 PM

ugordan Actually, not necessarily zero phase. Remember thi... Feb 16 2007, 10:25 PM

elakdawalla Oops! Thanks for the correction. Glad I got ... Feb 16 2007, 10:31 PM

Rob Pinnegar I noticed the "darkened" images of Iapet... Feb 17 2007, 02:28 PM

TritonAntares Btw, I once (2006-03-14) posted this: QUOTE And so... Feb 18 2007, 03:47 PM

tasp Interesting . . . Iapetus traversing the Saturni... Feb 18 2007, 07:31 PM

nprev This is probably an FAQ for the unhip (and please ... Feb 19 2007, 12:04 AM

Rob Pinnegar QUOTE (nprev @ Feb 18 2007, 05:04 PM) ...... Feb 19 2007, 12:09 AM

TritonAntares QUOTE (nprev @ Feb 19 2007, 01:04 AM) ...... Feb 19 2007, 12:48 PM

TritonAntares Hi, I just read that the Iapetuseclipse in februar... Mar 23 2007, 07:58 AM

nprev Thanks, TA & Rob. Main thing is that we need... Feb 19 2007, 03:30 PM

tasp We might note a correlation between degree of dark... Feb 19 2007, 03:38 PM

tasp Or tackling the problem the other way round, someo... Feb 19 2007, 03:41 PM

nprev Cool; didn't know that either, thanks! ... Mar 23 2007, 08:04 AM

scalbers There was also some pre-Cassini info on the B-ring... Mar 24 2007, 04:32 PM

edstrick A Voyager watched a stellar occultation by the ent... Mar 25 2007, 09:16 AM

CAP-Team Today I was looking at a rendering I created this ... Mar 27 2007, 11:15 AM

ugordan Cool! This is no doubt on Cassini's imagin... Mar 27 2007, 11:28 AM

Rob Pinnegar You can see that using the Solar System Simulator ... Mar 27 2007, 07:11 PM

volcanopele I hate to burst everyone's bubble, but no imag... Mar 27 2007, 07:35 PM

ugordan From the latest PDS batch, here's an approx. n... Apr 2 2007, 06:06 PM

JRehling QUOTE (ugordan @ Apr 2 2007, 11:06 AM) Fr... Apr 2 2007, 07:35 PM

tasp QUOTE (JRehling @ Apr 2 2007, 02:35 PM) .... Apr 3 2007, 02:43 AM

scalbers QUOTE (ugordan @ Apr 2 2007, 06:06 PM) Fr... Apr 5 2007, 08:29 PM

TritonAntares Let me just mention the far encounter later this m... Apr 2 2007, 10:04 PM

CAP-Team QUOTE (TritonAntares @ Apr 3 2007, 12:04 ... Apr 3 2007, 09:29 PM

Michael Capobianco Here's a stereo view that gives a pretty good ... Apr 3 2007, 12:05 AM

ugordan No, it really is November 2005. The January 2006 e... Apr 5 2007, 08:40 PM

Rob Pinnegar That November 2005 image is interesting for anothe... Apr 6 2007, 07:13 PM

TritonAntares Hi, here some infos about the upcoming far-encount... Apr 12 2007, 09:06 PM

TritonAntares So, NASA's Solar System Simulator shows this: ... Apr 15 2007, 08:53 AM

TritonAntares Ahh, there they are... Here two takeouts, ~3x ... Apr 16 2007, 03:41 PM

Rob Pinnegar QUOTE (TritonAntares @ Apr 16 2007, 09:41... Apr 16 2007, 03:58 PM

TritonAntares QUOTE (Rob Pinnegar @ Apr 16 2007, 04:58 ... Apr 16 2007, 04:23 PM

TritonAntares So, next series arrived... Here two further ta... Apr 19 2007, 08:35 PM

TritonAntares Hi, next pics are online... A takeout, ~4x enla... Apr 22 2007, 10:53 AM

ngunn More food, Iapetus hounds: http://saturn.jpl.nasa.... Apr 16 2007, 02:42 PM

ugordan QUOTE (ngunn @ Apr 16 2007, 03:42 PM) Mor... Apr 16 2007, 03:16 PM

Rob Pinnegar For fans of Roncevaux Terra, the first set of Iape... Apr 16 2007, 02:44 PM

Phil Stooke This is a composite of four of the new images. I ... Apr 16 2007, 04:42 PM

ngunn If I'm not mistaken all these features show up... Apr 16 2007, 07:05 PM

TritonAntares Any idea for these structures? Real or artifici... Apr 16 2007, 09:33 PM

alan Iapetus is a relatively small part of the image th... Apr 16 2007, 11:11 PM

Rob Pinnegar Thanks for the composite, Phil. In addition to t... Apr 17 2007, 02:24 AM

ngunn Info on upcoming Iapetus imaging on Rev 43 'lo... Apr 17 2007, 11:10 AM

ngunn More images appearing now. Apr 19 2007, 01:28 PM

Pavel Iapetus, the Yin and Yang moon Apr 19 2007, 08:59 PM

ngunn I'd rather say 'tennis ball moon'- mor... Apr 19 2007, 09:11 PM

ngunn TritonAntares I've just created a cross-eye st... Apr 20 2007, 10:53 AM

Phil Stooke My version of that latest set, 4 images merged, sh... Apr 22 2007, 12:33 PM

Phil Stooke ...and the next one... Phil Apr 23 2007, 12:36 AM

ngunn Wow - those two make a beautiful stereo pair (but ... Apr 23 2007, 07:49 AM

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