CICLOPS: Cassini Imaging Central Laboratory for OPerationS

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Imaging Diary - Cassini

 
8/15/11
Dramatic Helene
PIA12779
 
7/4/11
High-Res Helene
PIA12773
 
6/20/11
Helene 'Rev 149' Raw Preview #4
 
6/20/11
Helene 'Rev 149' Raw Preview #3
 
6/20/11
Helene 'Rev 149' Raw Preview #2
 

 

 
6/20/11
Helene 'Rev 149' Raw Preview #1
 
3/21/11
Flying by Helene
PIA12758
 
2/1/11
Helene 'Rev 144' Raw Preview #2
 
2/1/11
Helene 'Rev 144' Raw Preview #1
 
9/17/10
Catching Helene
PIA12723
 

 

 
6/11/10
Closest View of Helene
PIA12653
 
3/3/10
Helene "Rev 127" Flyby Raw Preview #1
 
3/3/10
Helene "Rev 127" Flyby Raw Preview #3
 
3/3/10
Helene "Rev 127" Flyby Raw Preview #2
 
3/3/10
Helene "Rev 127" Flyby Raw Preview #4
 

 

 
12/29/08
Helene Attends Dione
PIA10544
 
8/28/07
Helene of Troy
PIA09015
 
3/15/07
Helene and Mimas
PIA08897
 
12/29/06
Helene
PIA08335
 
9/15/06
Helene's Close-up
PIA08269
 

 

 
7/21/05
Helene from Afar
PIA07547
 
12/28/09
Splinters of Rings
PIA12514
 
2/2/09
It's Full of Moons!
PIA10569
 
9/19/07
Moons that Share
PIA09731
 
6/28/06
New Moon
PIA08209
 

 

 
4/25/06
The Enceladus Ring
PIA08163
 
12/21/05
Small Worlds of Saturn
PIA07657
 
5/2/05
Dione's Companion
PIA06639
 
4/20/05
Moons Off the Port Bow
PIA06631
 
2/24/05
Telesto: Companion of Tethys
PIA06592
 

 






Newsroom - Press Releases

 
CASSINI FINDS TREASURES AMONG THE RINGS AND SMALL SATELLITES OF SATURN - Feb 24, 2005
 ... in its orbit around a planet. Helene is a previously-known 32-kilometer ...







Newsroom - Special Events

 
Helene Rev 149 Raw Preview - Jun 20, 2011
 ... encounter with Saturn's icy moon Helene, beaming down raw images of the ... 4,330 miles (6,968 kilometers) of Helene's surface. It was the second closest approach to Helene of the entire mission.Cassini ...


 
Helene, Enceladus, Mimas Rev 144 Raw Preview - Feb 1, 2011
 ... unprocessed images of Saturn's moons Helene, Enceladus and Mimas were taken ... 28,000 kilometers (17,398 miles) of Helene. It also caught a glimpse of Mimas ...


 
Helene Rev127 Flyby Raw Preview - Mar 3, 2010
 ... unprocessed images of Saturn's moon Helene were taken on March 3, 2010 ...







Newsroom - Looking Ahead

 
Rev230 - Dec 29, 2015
 


 
Rev229 - Dec 15, 2015
 


 
Rev171 - Aug 27, 2012
 


 
Rev168 - Jun 14, 2012
 


 
Rev167 - May 23, 2012
 








Alliance Member Comments


Methone 'Rev 166' Raw Preview #1
Dragon_of_Luck_Mah_Jonng1971      
2012-06-17 16:38:47

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The shape of this moonlet is a great surprise for me. Even after the surprises with Prometheus, Calypso and Helene I didn't expect it to be shaped almost perfectly like an egg ( taking as a fact that its shape is the same one in the small darkened area what I suppose to be like the lit one very probably ) . It is only 2 miles across.


High-Res Helene
Iapetus Monolith      
2011-08-26 13:45:58

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Dear Helene, how did you get to be such a smoothie? Dear Ciclops, again you take my breath away ... you people are worth your weight in gold.


High-Res Helene
Red_dragon      
2011-07-04 07:48:44

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Great stuff as always. It's really interesting to observ how Helene has so few (and little) craters, in concordance with being a pile of rubble.


Helene 'Rev 149' Raw Preview #1
Mercury_3488      
2011-06-28 14:37:24

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Fantastic set of images of Helene. Do we know if the surface is dust covered or comosed of icy grains, possibly sourced from the geysers of Enceladus or Saturn's rings in general? Also Helene is only slightly larger than the Mars moon Phobos. Helene generally lacks impact craters accenpt for the side that is leading. Phobos seen at this resolution would be heavily cratered & grooved. Helene appears to lack both. Perhaps Helenequakes from impacts triggers these landslides & erases craters??? The surface gravity cannot be any more than 1/1,500th that on Earth. Andrew R Brown.


Helene 'Rev 149' Raw Preview #1
enceladus5      
2011-06-20 16:08:48

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Awesome closeup of Helene. A strange, yet beautiful small moon.


Helene 'Rev 144' Raw Preview #1
Mercury_3488      
2011-02-28 16:06:16

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Hi NeKto I have not been here for a while. That is true, perhaps the flow lines could also indicate mass concentrations within Helene. I also understood that the flow lines could also be from ice swept up from the geysers on Enceladus. The Tethys tojan moons Telesto & Calypso are also largely covered in fine ice & Calypso too shows hints of flowlines. Would be interesting to get a close up of Polydeuces if possible too, the other Dione trojan moon, the one that trails Dione. Polydeuces is only about 3.5 KM wide at most, so Helene is very much larger. Andrew Brown.


Helene 'Rev 144' Raw Preview #1
tish      
2011-02-02 11:12:06

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I agree with Andrew, what an unusual feature on Helene. Looks like something hit her recently. -Tish


Helene 'Rev 144' Raw Preview #2
Mercury_3488      
2011-02-01 16:49:44

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Another interesting mug shot of Helene, the leading Trojan moon of Dione. Helene is only 36 KM by 32 KM by 30 KM in size, where as Dione is 1,123 KM wide!!!! Mind you the trailling trojan moon Polydeuces is much smaller again, perhaps only 3 KM wide!!!!!!!! What is interesting to see is that the three trojan moons seen up close to date (Helene for Dione as well as Telesto & Calypso for Tethys) is that thet all have smoother profiles & certainly Calypso & Helene display flow like features. Are they sweeping up ice crystals ejected from Enceladus's geysers??? Andrew Brown.


Helene 'Rev 144' Raw Preview #1
Mercury_3488      
2011-02-01 16:35:21

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Wow interesting views of Helene :) The curious flow like features seen from a far northern viewpoint are interesting, they appear to radiate from a point like hair growth from a crown on someones head!!!! Andrew Brown.


Wisps Before Craters
Mercury_3488      
2011-01-31 13:08:45

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***Reminder*** Just to say that around perikrone today, there was a non targetted Mimas pass, as well as that of Enceladus & Helene shortly after. Looking forward to seeing those images, Cassini did not pass that close to any of them, but more than close enough to reveal much new data & views from differing vantage points, than ever before. Andrew Brown.


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