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Iapetus Far-Encounter between March 25 and April 18 2006
TritonAntares
post Mar 14 2006, 01:04 PM
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First of all, again the two existing encounter animations:
Animation 1
Animation 2

Nearest approach:

Resolution about 3,6 km/pxl.

And some pre-info about upcoming encounters:
2006 Mar 25 to Apr 18: Apr 11 - 602.412 km; 14-3.6 km/pxl; medium to high phase, southern hemisphere as crescent
2006 Jun 17 to 27: Jun 23 - 1.343.000 km; 14-8.1 km/pxl; medium to low phase, sub-Saturn hemisphere
2006 Sep 08 to 09: Sep 02 - 1.816.000 km; ~20 km/pxl; zero phase (3 to 0.05 deg), sub-Saturn
2006 Nov 26: 1.997.000 km; 12 km/pxl; very low phase, sub-Saturn
2007 Feb 12 to 15: Feb 14 - 2.249.000 km; ~14 km/pxl; sub-Saturn; very low phase and eclipse
2007 Apr 14: 2.256.000 km
2007 Jun 22: 1.817.000 km; ~14 km/pxl; med. phase, trailing side
2007 Sep 03 to 09: 8.6-0.7 km/pxl; very high phase, western Cassini Regio
2007 Sep 10: 480-10-540 m/pxl; targeted flyby, trailing side
2007 Sep 11 to 17: 0.7-7.1 km/pxl; low phase (~33 deg) trailing side
2007 Sep 27: 15 km/pxl, low phase sub-Saturn+trailing side
2007 Nov 26: 1.371.000 km; 8.2 km/pxl; very high phase, north pole, possibly graylight
2008 Feb 13: 2.045.000 km; 14 km/pxl; high phase, north pole, possibly graylight

Days around Sep 10 belong to the targeted fly-by in about 1000 km distance,
others will only be some OPNAVs.

Bye.
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Decepticon
post Mar 27 2006, 01:09 PM
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Images stared coming in... http://saturn.jpl.nasa.gov/multimedia/imag...9/N00056025.jpg
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TritonAntares
post Mar 27 2006, 02:05 PM
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Hi,
yes, the first 18 images arrived.
Here two takeouts:
Attached Image

Date: 2006/03/25
Distance: 2.375.054 km
Filters: P60 and GRN

Attached Image

Date: 2006/03/26
Distance: 2.325.426 km
Filters: CL1 and CL2

Nothing spectecular, the same side as everytime...

Bye.
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TritonAntares
post Mar 28 2006, 06:24 PM
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Hi,
another 9 images were published.
Here one takeout:
Attached Image
Date: 2006/03/27
Distance: 2.262.603 km
Filters: CL1 and CL2

Bye.
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TritonAntares
post Mar 30 2006, 06:15 PM
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Hello,
another 9 images arrived from CASSINI.
Here one takeout:
Attached Image
Date: 2006/03/28
Distance: 2.188.203 km
Filters: CL1 and CL2

Bye.
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TritonAntares
post Apr 1 2006, 10:02 AM
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Hi,
another 10 far-distance images were taken from Iapetus.
Here one takeout:
Attached Image
Date: 2006/03/29
Distance: 2.103.960 km
Filters: CL1 and CL2

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TritonAntares
post Apr 3 2006, 03:53 PM
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So,
another 10 far-distance images arrived lately.
The takeout:
Attached Image

Date: 2006/04/02
Distance: 1.639.462 km
Filters: CL1 and CL2

Bye.
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TritonAntares
post Apr 7 2006, 01:45 PM
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So,
one lonely Iapetus images was released lately:
Attached Image

Date: 2006/04/06
Distance: 1.140.455 km
Filters: CL1 and CL2

Bye.
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angel1801
post Apr 8 2006, 01:56 PM
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I checked the raw images just a few minutes ago. Images ranging from about 922,000 km to about 1,050,000 km are available now.


--------------------
I call heaven and earth to witness against you this day, that I have set before thee life and death, the blessing and the curse; therefore choose life, that thou mayest live, thou and thy seed.

- Opening line from episode 13 of "Cosmos"
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angel1801
post Apr 9 2006, 05:11 AM
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QUOTE (angel1801 @ Apr 8 2006, 11:26 PM) *
I checked the raw images just a few minutes ago. Images ranging from about 922,000 km to about 1,050,000 km are available now.


Just checked again. Images are now only 822,000 km from Iapetus now.


--------------------
I call heaven and earth to witness against you this day, that I have set before thee life and death, the blessing and the curse; therefore choose life, that thou mayest live, thou and thy seed.

- Opening line from episode 13 of "Cosmos"
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TritonAntares
post Apr 9 2006, 11:15 AM
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QUOTE (angel1801 @ Apr 9 2006, 07:11 AM) *
Just checked again. Images are now only 822,000 km from Iapetus now.

So,
seven more Iapetus images came in only a few hours later.
As I heard, there will be at least 2 transmissions per day from now on.

The Takeout:
Attached Image

Date: 2006/04/08
Distance: 865.497 km
Filters: CL1 and IR3

QUOTE
I brightened the image. The right side of green 'basin' looks more like a few craters lined up,
the left side the outer rim of the blue basin.
Odd coincidence... blink.gif

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TritonAntares
post Apr 10 2006, 02:41 PM
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So,
CASSINI broadcasted 21 more Iapetus images.

Four Takeouts:
Attached Image

Date: 2006/04/09
Distance: 777.087 km
Filters: CL1 and CL2

Attached Image

Date: 2006/04/09
Distance: 722.712 km
Filters: CL1 and CL2

Attached Image

Date: 2006/04/09
Distance: 711.286 km
Filters: CL1 and CL2
The mentioned crater pair is visible at the terminator.
Look at the disturbed figure of this moon...

Attached Image

Date: 2006/04/09
Distance: 699.281 km
Filters: CL1 and CL2
The second southern bassin is getting more and more prominent.
----------------------------------------------------------------------------------------------------------
QUOTE (angel1801 @ Apr 10 2006, 02:31 PM) *
I've just checked again. Images are available for distances as low as 695,000 km. There even is a
"saturn shine" shot as well (the first of this distant Iapetus encounter!)

Btw, the region for possible saturnshine again:

Attached Image


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Michael Capobian...
post Apr 10 2006, 03:41 PM
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If the northern "blue" basin rim intersects the bellyband, it should be very easy to determine which is older. Looks to me like the bellyband may postdate the basin, which is another thing any theory of its formation would have to explain.

Michael
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TritonAntares
post Apr 10 2006, 06:46 PM
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QUOTE (Michael Capobianco @ Apr 10 2006, 05:41 PM) *
If the northern "blue" basin rim intersects the bellyband, it should be very easy to determine which is older. Looks to me like the bellyband may postdate the basin, which is another thing any theory of its formation would have to explain.
Attached Image

Difficult to say where the rims of both bassins are...
The northern one is bounded by large eroded craters, the southern nearly invisible on this map.
The northern bassin is surely older than the craters and they seem to be older than the equatorial ridge,
but some closer look should be taken there...
QUOTE
...the prior mentioned mountain at the right rim of this april 1st image:
Attached Image
It is most likely placed in the short part of the equatorial ridge east of the known giant bassin in eastern CR
(with the landslide) and another even more eastern bassin.
This second before unknown bassin and the mountain showed up in a digital terrain model!
I also tried to locate this 'far eastern' bassin in Steve's map,
but there is only a barely detectable curved structure - eastern rim? - visible (green doted line) ....
Attached Image

Possible positions of the 'mountain at the right rim' are marked red, the 'belly band' is shown as black line
and the known eastern CR-bassin in the blue circle.
Who has any idea?

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Posts in this topic
- TritonAntares   Iapetus Far-Encounter between March 25 and April 18 2006   Mar 14 2006, 01:04 PM
- - TritonAntares   QUOTE (TritonAntares @ Mar 14 2006, 02:04...   Mar 17 2006, 10:28 AM
|- - angel1801   QUOTE (TritonAntares @ Mar 17 2006, 07:58...   Mar 17 2006, 01:16 PM
- - scalbers   Hi all, It's true I use a map convention that...   Mar 17 2006, 07:24 PM
|- - angel1801   QUOTE (scalbers @ Mar 18 2006, 04:54 AM) ...   Mar 18 2006, 12:43 PM
|- - helvick   QUOTE (angel1801 @ Mar 18 2006, 12:43 PM)...   Mar 18 2006, 02:29 PM
- - scalbers   Angel1801, It turns out that the 'convert...   Mar 18 2006, 02:54 PM
- - Phil Stooke   If you need to switch between maps centred at 0 an...   Mar 18 2006, 06:27 PM
|- - um3k   QUOTE (Phil Stooke @ Mar 18 2006, 01:27 P...   Mar 19 2006, 04:51 AM
|- - TritonAntares   QUOTE (um3k @ Mar 19 2006, 05:51 AM) You ...   Mar 20 2006, 11:03 PM
- - edstrick   I flipped the meridians in an Iapetus map a while ...   Mar 19 2006, 12:24 PM
- - TritonAntares   Many thanks for the advices on converting the Iape...   Mar 19 2006, 06:59 PM
|- - tedstryk   QUOTE (TritonAntares @ Mar 19 2006, 06:59...   Mar 22 2006, 09:27 PM
|- - TritonAntares   The first Iapetus image of the upcoming far-encoun...   Mar 23 2006, 10:33 AM
|- - TritonAntares   QUOTE (tedstryk @ Mar 22 2006, 10:27 PM) ...   Mar 24 2006, 11:25 AM
|- - tedstryk   QUOTE (TritonAntares @ Mar 24 2006, 11:25...   Mar 24 2006, 02:13 PM
- - scalbers   Interesting images from back in 2004. I'll hav...   Mar 20 2006, 08:31 PM
- - Decepticon   To lazy to to check, is Iapetus in a proper orbit ...   Mar 23 2006, 01:55 PM
|- - ugordan   QUOTE (Decepticon @ Mar 23 2006, 02:55 PM...   Mar 23 2006, 02:03 PM
- - scalbers   I did a Celestia run for July 2004 and found that ...   Mar 24 2006, 06:56 PM
|- - TritonAntares   QUOTE (scalbers @ Mar 24 2006, 07:56 PM) ...   Mar 24 2006, 10:01 PM
- - Decepticon   Images stared coming in... http://saturn.jpl.nasa....   Mar 27 2006, 01:09 PM
|- - TritonAntares   Hi, yes, the first 18 images arrived. Here two tak...   Mar 27 2006, 02:05 PM
|- - TritonAntares   Hi, another 9 images were published. Here one take...   Mar 28 2006, 06:24 PM
||- - TritonAntares   Hi, Here a Iapetus picture gallery from the German...   Mar 29 2006, 11:26 AM
|||- - TritonAntares   Hi, ever seen this series? This enormous southern...   Mar 30 2006, 07:54 AM
||- - TritonAntares   Hello, another 9 images arrived from CASSINI. Here...   Mar 30 2006, 06:15 PM
||- - TritonAntares   Hi, another 10 far-distance images were taken from...   Apr 1 2006, 10:02 AM
||- - TritonAntares   So, another 10 far-distance images arrived lately....   Apr 3 2006, 03:53 PM
||- - TritonAntares   Hello, another 11 Iapetus far-distance images have...   Apr 5 2006, 05:05 PM
|||- - Michael Capobianco   QUOTE (TritonAntares @ Apr 5 2006, 01:05 ...   Apr 5 2006, 06:16 PM
|||- - TritonAntares   Hi, the rest of the April 4th Iapetus image series...   Apr 6 2006, 03:13 PM
||- - TritonAntares   So, one lonely Iapetus images was released lately:...   Apr 7 2006, 01:45 PM
||- - angel1801   I checked the raw images just a few minutes ago. I...   Apr 8 2006, 01:56 PM
|||- - angel1801   QUOTE (angel1801 @ Apr 8 2006, 11:26 PM) ...   Apr 9 2006, 05:11 AM
|||- - TritonAntares   QUOTE (angel1801 @ Apr 9 2006, 07:11 AM) ...   Apr 9 2006, 11:15 AM
||||- - TritonAntares   So, CASSINI broadcasted 21 more Iapetus images. F...   Apr 10 2006, 02:41 PM
||||- - Michael Capobianco   If the northern "blue" basin rim interse...   Apr 10 2006, 03:41 PM
||||- - TritonAntares   QUOTE (Michael Capobianco @ Apr 10 2006, 05...   Apr 10 2006, 06:46 PM
||||- - BruceMoomaw   QUOTE (Michael Capobianco @ Apr 10 2006, 03...   Apr 11 2006, 02:21 AM
||||- - Michael Capobianco   QUOTE (BruceMoomaw @ Apr 10 2006, 10:21 P...   Apr 11 2006, 04:05 AM
|||- - angel1801   QUOTE (angel1801 @ Apr 9 2006, 02:41 PM) ...   Apr 10 2006, 12:31 PM
|||- - ugordan   QUOTE (angel1801 @ Apr 10 2006, 01:31 PM)...   Apr 10 2006, 12:38 PM
|||- - angel1801   QUOTE (ugordan @ Apr 10 2006, 10:08 PM) I...   Apr 10 2006, 01:37 PM
||- - TritonAntares   Hi, this time some more Iapetus images (altogether...   Apr 8 2006, 08:13 PM
||- - TritonAntares   Hi again, after a second look at the latest Iapetu...   Apr 8 2006, 09:14 PM
|- - TritonAntares   Hi, yes, the next 18 images arrived. Here two take...   Apr 2 2006, 06:56 PM
- - Decepticon   Those night side images are just breath taking...   Mar 30 2006, 01:19 AM
- - BruceMoomaw   Keep in mind that they're NOT the nightside; t...   Mar 30 2006, 02:41 AM
|- - tedstryk   QUOTE (BruceMoomaw @ Mar 30 2006, 02:41 A...   Mar 30 2006, 03:12 AM
|- - mchan   QUOTE (BruceMoomaw @ Mar 29 2006, 06:41 P...   Mar 30 2006, 04:21 AM
- - Rob Pinnegar   This distant flyby could turn out to be pretty int...   Apr 1 2006, 04:20 PM
|- - Michael Capobianco   QUOTE (Rob Pinnegar @ Apr 1 2006, 11:20 A...   Apr 1 2006, 05:41 PM
|- - Rob Pinnegar   QUOTE (Michael Capobianco @ Apr 1 2006, 10...   Apr 1 2006, 06:07 PM
|- - TritonAntares   QUOTE (Rob Pinnegar @ Apr 1 2006, 06:20 P...   Apr 1 2006, 08:26 PM
|- - Michael Capobianco   [quote name='TritonAntares' date='Apr ...   Apr 1 2006, 08:50 PM
|- - TritonAntares   Hello!QUOTE The ridge you highlight appears to...   Apr 1 2006, 10:48 PM
|- - Michael Capobianco   QUOTE (TritonAntares @ Apr 1 2006, 05:48 ...   Apr 2 2006, 03:18 AM
|- - ugordan   QUOTE (TritonAntares @ Apr 1 2006, 11:48 ...   Apr 2 2006, 10:34 AM
|- - TritonAntares   QUOTE (ugordan @ Apr 2 2006, 12:34 PM) Th...   Apr 2 2006, 01:15 PM
- - scalbers   Yes I agree the white line on the E edge of CR is ...   Apr 2 2006, 12:51 AM
- - Decepticon   Raws are up for April 1,2006   Apr 2 2006, 02:07 PM
- - Phil Stooke   This is the latest view of Iapetus. It's a co...   Apr 3 2006, 02:08 AM
- - Rob Pinnegar   Hey, what's that white curve-shaped feature ne...   Apr 3 2006, 05:23 AM
|- - ugordan   QUOTE (Rob Pinnegar @ Apr 3 2006, 06:23 A...   Apr 3 2006, 07:17 AM
|- - TritonAntares   QUOTE (Rob Pinnegar @ Apr 3 2006, 07:23 A...   Apr 3 2006, 02:21 PM
- - Decepticon   At first glance it looked like a chain of craters?   Apr 3 2006, 12:32 PM
- - Phil Stooke   Another view of Iapetus from the latest sequence. ...   Apr 3 2006, 01:32 PM
- - BruceMoomaw   Dennis Matson will have a paper at May's AGU m...   Apr 6 2006, 12:27 AM
- - Phil Stooke   The trick then becomes explaining the lack of ridg...   Apr 6 2006, 01:24 AM
|- - Michael Capobianco   Actually, I was referring to the little curvilinea...   Apr 6 2006, 04:03 AM
- - Rob Pinnegar   For what my opinion might be worth, the aluminum-2...   Apr 6 2006, 03:02 PM
- - tasp   A thought experiment: Get a very precise cannon, ...   Apr 6 2006, 03:03 PM
- - Michael Capobianco   So we have exogenous and endogenous theories for t...   Apr 6 2006, 03:19 PM
|- - Bob Shaw   The flaw in the 'bowling ball' theory is t...   Apr 6 2006, 03:34 PM
|- - TritonAntares   QUOTE (Michael Capobianco @ Apr 6 2006, 05...   Apr 6 2006, 07:54 PM
- - tasp   Laplace worked out the scenario for getting all th...   Apr 6 2006, 05:08 PM
|- - Bob Shaw   QUOTE (tasp @ Apr 6 2006, 06:08 PM) Of al...   Apr 6 2006, 05:47 PM
- - tasp   Thanx for the picture, nice to see the ridge right...   Apr 6 2006, 11:59 PM
|- - BruceMoomaw   QUOTE (tasp @ Apr 6 2006, 11:59 PM) I am ...   Apr 7 2006, 01:34 AM
|- - TritonAntares   QUOTE (BruceMoomaw @ Apr 7 2006, 03:34 AM...   Apr 7 2006, 10:21 AM
- - BruceMoomaw   The best summaries of the views of Matson, Jonatha...   Apr 7 2006, 03:39 AM
- - nprev   Hmm. Almost makes you wonder if Enceladus was simi...   Apr 7 2006, 05:32 AM
- - BruceMoomaw   Actually, Castillo et al are thinking of precisely...   Apr 7 2006, 05:50 AM
- - tasp   My thoughts on 'the good old days' on Iape...   Apr 7 2006, 02:39 PM
|- - Steve G   QUOTE (tasp @ Apr 7 2006, 07:39 AM) My th...   Apr 8 2006, 05:48 PM
- - Decepticon   Wow, I didn't notice the second basin!   Apr 8 2006, 10:36 PM
- - alan   I brightened the image The right side of green ...   Apr 8 2006, 11:55 PM
- - Phil Stooke   Here is the latest view... two images stacked. I ...   Apr 9 2006, 02:41 PM
- - Decepticon   Phil what program did you use to stack the images?   Apr 9 2006, 03:40 PM
- - Phil Stooke   I do everything in Photoshop. Phil   Apr 9 2006, 03:45 PM
- - Decepticon   Here is my best atemped.   Apr 9 2006, 04:13 PM
|- - TritonAntares   QUOTE (Decepticon @ Apr 9 2006, 06:13 PM)...   Apr 9 2006, 05:28 PM
- - Phil Stooke   Nice. What I did differently was to make feathere...   Apr 9 2006, 04:25 PM
- - Rob Pinnegar   A stereo pair might help determine whether that ...   Apr 9 2006, 04:37 PM
- - Rob Pinnegar   I wouldn't mind seeing some of those "dig...   Apr 10 2006, 04:38 AM
- - Rob Pinnegar   Yes, that's right. Remember that Saturnshine c...   Apr 10 2006, 01:22 PM
- - Decepticon   Another try at it. Tricky to bring detail out wit...   Apr 11 2006, 02:03 AM
- - Phil Stooke   The latest Iapetus view... composite of two images...   Apr 11 2006, 03:16 AM
- - Big_Gazza   Seems odd that most of the Iapetus images seem to ...   Apr 11 2006, 09:52 AM
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