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Iapetus Far-Encounter between March 25 and April 18 2006
Decepticon
post Mar 23 2006, 01:55 PM
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To lazy to to check, is Iapetus in a proper orbit for saturnshine images?
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ugordan
post Mar 23 2006, 02:03 PM
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QUOTE (Decepticon @ Mar 23 2006, 02:55 PM) *
To lazy to to check, is Iapetus in a proper orbit for saturnshine images?

There is no "proper" orbit for saturnshine images. Every orbit will carry the moon over Saturn's dayside eventually, if it's a circular orbit it will do so for half the orbital period. This is the time when the sub-saturnian hemisphere of the moon receives saturnshine. The brightness obviously depends upon distance from Saturn and the phase angle at which Saturn appears.


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TritonAntares
post Mar 24 2006, 11:25 AM
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QUOTE (tedstryk @ Mar 22 2006, 10:27 PM) *
Yes...that is a sequence from slightly farther out than the one I used to make this super-res view I posted a while back.

I created a simulated Iapetus view with Celestia for Jul 19, 2004:

Attached Image

Attached Image

Maybe I'll add an animation later.

When actually was your super-res taken?

Bye.
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tedstryk
post Mar 24 2006, 02:13 PM
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QUOTE (TritonAntares @ Mar 24 2006, 11:25 AM) *
I created a simulated Iapetus view with Celestia for Jul 19, 2004:

Attached Image

Attached Image

Maybe I'll add an animation later.

When actually was your super-res taken?

Bye.


I will have to research that. I lost the work in my computer crash, and I only have the finished product because I posted it to this forum and downloaded it again...Without the original files, I can't say for certain which images I used, although I know I used an entire set and that it was the closest set I could find taken prior to orbit insertion.


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scalbers
post Mar 24 2006, 06:56 PM
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I did a Celestia run for July 2004 and found that Cassini had a closest approach at about 0900 UT on July 13, and this just about matches Ted's super-res image! I am currently checking to see if this can add detail to my map. This image really does seem to have a lot of detail for 2330000km distance.

Ted, I was unable to spot the original images on the raw images page, so perhaps you had done your processing using PDS images?


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TritonAntares
post Mar 24 2006, 10:01 PM
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QUOTE (scalbers @ Mar 24 2006, 07:56 PM) *
..., I was unable to spot the original images on the raw images page,...
Hi Steve!

Try this one:
http://saturn.jpl.nasa.gov/multimedia/imag...feiImageID=7174
...and the following images.

Quite a lot of stuff I've never had a detailed look at... sad.gif

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 29 2006, 11:26 AM
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Hi,
Here a Iapetus picture gallery from the German FU-Berlin.
Some images were unpublised until now.
Bye.
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Decepticon
post Mar 30 2006, 01:19 AM
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Those night side images are just breath taking! smile.gif
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Guest_BruceMoomaw_*
post Mar 30 2006, 02:41 AM
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Guests






Keep in mind that they're NOT the nightside; they're the dark side (Iapetus being the only moon that genuinely has one).
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tedstryk
post Mar 30 2006, 03:12 AM
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QUOTE (BruceMoomaw @ Mar 30 2006, 02:41 AM) *
Keep in mind that they're NOT the nightside; they're the dark side (Iapetus being the only moon that genuinely has one).



Actually, in that series, there are several that are from the Saturnshine coverage.


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mchan
post Mar 30 2006, 04:21 AM
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QUOTE (BruceMoomaw @ Mar 29 2006, 06:41 PM) *
Keep in mind that they're NOT the nightside; they're the dark side (Iapetus being the only moon that genuinely has one).

Hmm, I had never considered before that Pink Floyd was referring to Iapetus.
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TritonAntares
post Mar 30 2006, 07:54 AM
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Hi,
ever seen this series?
Attached Image

This enormous southern bassin is really remarkable.
Remembers quite a bit of the large craters on Tethys:
Attached Image

Left: Melanthius
Right: Odysseus
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Btw, 'Solar System Viewer' is now working with an updated Iapetus texture, finally... biggrin.gif
Here five views from CASSINI:
Attached Image
Attached Image
Attached Image


Attached Image
Attached Image

Pretty improvement... cool.gif
QUOTE
To lazy to check, is Iapetus in a proper orbit for saturnshine images?

And one from Saturn today:
Attached Image

Luckily sunshine outshines saturnshine today... wink.gif
Due to its bounded orbit you can recognize the saturnshine side of Iapetus.

Bye.
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