May 30 2011, 08:02 PM
Latest Looking ahead article (Rev149: May 30 - Jun 29) is up.
- Iapetus observations
- Titan-Rhea mutual event
- close (6,968 km) flyby of Helene
- Titan flyby
Jun 6 2011, 05:49 PM
A rare view of Iapetus, slight high-pass filter applied to reduce glare in the sunlit ice:Click to view attachment
Jun 7 2011, 02:15 AM
Image of Saturn on June 4, 2011. Assembled from CB2, GRN, and BL1 images:Click to view attachment
Jun 8 2011, 02:37 PM
Lots of Iapetus images have been posted on Cassini's raw image page here
Jun 8 2011, 07:27 PM
Iapetus' double impact basin front-n-center. June 7th, IR1/GRN/UV3.Click to view attachment
Jun 8 2011, 08:39 PM
Much appreciated Gordan. It's great to see the old walnut moon again, and from a new angle.
Jun 9 2011, 02:48 AM
Has any new terrain been revealed in this view? Obviously it isn't the best resolution, but just out of curiosity.
Jun 9 2011, 04:43 PM
Imagine if you could rock Iapetus back and forth in your hand... well, this is the next best thing:http://youtu.be/qY2DMMak5L8?hd=1
Jun 9 2011, 05:05 PM
I downloaded all the flyby images this morning with the idea of assembling an animation if I find the time, but I think I'll just enjoy what has been done already.
Jun 11 2011, 10:21 PM
Another random snapshot from the Iapetus sequence, June 9th, IR1/GRN/UV3:Click to view attachment
"Snowman" craters coming into view at the limb to the left.
Jun 12 2011, 06:55 AM
Great as per usual, Gordan.
I've updated my Iapetus 'bouncy' flyby movie, which is derived from a sequence of 203 frames; tweened to 406:http://youtu.be/qY2DMMak5L8?hd=1
Jun 12 2011, 08:22 AM
as for Iapetus, my only wish would be to have high-res image - in daylight - of the snowman craters..
Jun 12 2011, 05:46 PM
Its sad we don't get anymore closer flybys.
I'll take anything we can get.
Ian amazing work!
Jun 14 2011, 02:13 AM
Methanovision composite [MT3,MT2,CB2] with an overlaid CB2 image to enhance cloud detail taken on June 11, 2011:Click to view attachment
Jun 14 2011, 08:44 AM
Mike, another fantastic composition - such beauty! Keep up the great work!
Jun 16 2011, 12:52 AM
Two frame blink animation of two MethanoVision [MT3,MT2,CB2] composites from June 13, 2011. Some neat storm structures. It is subtle, but a counterclockwise motion can be seen in the left swirl looking at the inner cloud motions.Click to view attachment
(Individual frames and processing details on flickr
Jun 17 2011, 01:59 AM
June 14, 2011 image. Not this might be similar (1 or two rotations?) to the view seen above. Note a new upwelling to the W of the bright little (cute!) cloud swirl.Click to view attachment
If so, that makes three seperate upwellings in a line.
Jun 17 2011, 01:47 PM
Jun 17 2011, 02:39 PM
Oo, now they're getting all fancy with their camera angles. I assume that they did that technically to take advantage of the diagonal of their square FOV being 1.4 times longer than the path straight across...but it doesn't hurt that it looks cool!!
Jun 17 2011, 02:55 PM
Until someone makes an animation of this mutual event, here's a quickly trown together cross-eyed 3D view of the encounter.Click to view attachment
Jun 17 2011, 05:08 PM
I had lunch with Carolyn Porco a couple of weeks ago and asked her about these "tourist" photos - i.e., was there valuable scientific data being obtained or was it sightseeing? She said that she actually has quite a fondness for these kinds of beautiful images. They add so much to the perception of the Saturn system as a "place," and so they are planned even though there is really no scientific data to be gleaned from them. I suspect that the positive PR impact gained from these sightseeing photos certainly is worth the hydrazine to aim the camera.
Jun 17 2011, 05:50 PM
Don't go around looking for any alien bases, you might find them...Click to view attachment
Jun 17 2011, 05:56 PM
....that is drop-dead gorgeous, Gordan!!!
Jun 17 2011, 08:27 PM
Jun 18 2011, 02:40 PM
Until someone makes an animation...
Well, not exactly an animation but a 15 second movie based on the Cassini images.Click to view attachment
or on YouTube
Jun 18 2011, 03:34 PM
Astro0, very moving
Jun 18 2011, 08:41 PM
Very nice and seamless, Astro0!
Jun 20 2011, 12:10 PM
Jun 20 2011, 12:12 PM
Wow, they totally NAILED it this time!
Jun 20 2011, 12:15 PM
Holy smokes! Downslope flow features?
Jun 20 2011, 12:30 PM
Jun 20 2011, 12:47 PM
The Singing Badger
Jun 20 2011, 12:48 PM
Wow. These tiny moons never fail to bewilder.
Jun 20 2011, 12:50 PM
... that's a pretty astonishing little body. The solar system seems to have an endless supply of surprises.
I guess this is the face that launched a thousand [space]ships. Or a thousand excited exclamations of a word that sounds like ship.
Jun 20 2011, 12:56 PM
RGB composites, one in natural-ish contrast and another contrast-enhanced:Click to view attachment Click to view attachment
The illuminated hemisphere seems to be the same one as the saturnshine-lit one in this image
I think this is my favorite of the small Saturnian rocks.
Jun 20 2011, 01:16 PM
Jun 20 2011, 01:46 PM
Wow. Yet another object in the Saturn system that qualifies as one of the strangest ones I've ever seen. Maybe it's becoming necessary to redefine what strange means in this context because the 'stereotype' small and irregular asteroids/moons with nothing but craters seem to be really rare.
I get the impression that we may be looking at erosion features but I'm not sure how something like that might work.
Congratulations to the Cassini team for perfect pointing this time.
Jun 20 2011, 01:52 PM
Excellent images! Ski slopes on the Saturn's moon!
Surface of Helene is really extraordinary and it looks, that it is very young.
Jun 20 2011, 02:33 PM
Here's a try at a cross-eyed 3D view:Click to view attachment
Jun 20 2011, 02:42 PM
It looks as if a surface crust is eroding away... very odd.
Jun 20 2011, 03:12 PM
Jun 20 2011, 03:35 PM
QUOTE (Ian R @ Jun 20 2011, 11:12 AM)
Here's a 'bouncy' flyby movie:
Wow. When the thin crescent slowly reveals itself to be an object coming out of the gloom....wow.
That is beautiful.
Jun 20 2011, 03:46 PM
Great work Ian. I know how time consuming that can be.
Is that series cycling through images taken with different filters?
Jun 20 2011, 03:48 PM
Great work, everyone.
Jun 20 2011, 04:01 PM
QUOTE (Phil Stooke @ Jun 20 2011, 04:42 PM)
It looks as if a surface crust is eroding away... very odd.Calypso
also appears to have surface features resembling this. The resolution there is low, but we didn't notice these on Helene in lower resolution imagery, either.
Jun 20 2011, 04:38 PM
To me, it looks like ring material is coating up and loading onto the surface. Then at some point, it releases and makes an avalanche that fills into the basin.
Trying to get a sense of scale, this is about the size of a big avalanche chute on Earth, but I imagine the whole motion being much gentler due to the really low gravity.
Jun 20 2011, 04:47 PM
QUOTE (Juramike @ Jun 20 2011, 06:38 PM)
To me, it looks like ring material is coating up and loading onto the surface.
Looking at Ian's atlas, it does seem to be the case that the leading hemisphere is smooth, while the trailing is heavily cratered. My guess would be small impacts over time causing quakes to shake material down slope.
I wonder if the trailing hemisphere is spectrally redder as a consequence.
Jun 20 2011, 05:17 PM
Amazing image and interesting craters and errosion of the surface.
Jun 20 2011, 06:30 PM
Awesome with a capital 'awe'
I've been looking forward to this flyby for a couple of months. I get home from work hoping to browse the raw images; and come here first to find that not only was the camera pointing inch-perfect, but the raw images have been enhanced and stacked, there's a cross-eye stereo view to enjoy, and even a flyby movie on 'You tube'Phenomenal
I'm sure there's a little detail to be teased out courtesy of saturnshine too.....
Jun 20 2011, 06:43 PM
Incredible. Thanks again and again to the Cassini team and all of the image mavens here for providing the rest of us with a seemingly endless chain of such awe inspiring moments. Longest day of the year (almost), and I have a sudden yearning for winter.
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