Rev 134 - Jun 27-Jul 15, 2010 - Titan T71, Daphnis, Also "propellers" |
Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini's ongoing mission and raw images  |
Rev 134 - Jun 27-Jul 15, 2010 - Titan T71, Daphnis, Also "propellers" |
 Jun 27 2010, 08:01 PM
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 Member  Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655  |
Latest article available for the first revolution of the solstice mission here
A nice little squint at Daphnis (20-odd pixels in the NAC) accompanies a Titan flyby and 'propeller' studies amongst other things. Thanks again Jason for the planned observation schedules. |
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Jun 29 2010, 11:54 PM
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 Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
Very long sequence of images on the Cassini website showing thumbnails (256x256 pixels) that appear to be an aurora sequence.
It'll be interesting to see what the Cassini/Ciclops team get out of this observation set this time around. Here's an enlarged and noise-reduced frame...
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Jul 2 2010, 03:12 AM
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 Member Group: Members Posts: 754 Joined: 9-February 07 Member No.: 1700 |
How's her fuel holding up?
from a 2009 sdc article: QUOTE Cassini uses two types of fuel, hydrazine, which is used for small navigation maneuvers, and a standard bipropellant for larger maneuvers. While there is ample hydrazine to continue the mission through 2017, the Cassini navigation team has to be more conservative with its bipropellant. "We will design future tours knowing how much propellant is available for velocity change," Mitchell said.
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Jul 6 2010, 06:06 PM
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 The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Beautiful image of the rings... just beautiful...
http://saturn.jpl.nasa.gov/multimedia/imag...1/W00064671.jpg -------------------- |
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Jul 6 2010, 06:08 PM
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 Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Very interesting specular-like brightening around the tiger stripes in these images. Brighter patches were visible before, but I don't think I've ever seen the effect as pronounced as here (right hand image is just an enhancement).
If crystalline ice in the sulci is blue-green in the IR3/GRN/UV3 filter combo, what is white? Freshly fallen amorphous ice particles? -------------------- |
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Jul 10 2010, 01:18 AM
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 Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
QUOTE (ugordan @ Jul 6 2010, 11:08 AM)  If crystalline ice in the sulci is blue-green in the IR3/GRN/UV3 filter combo, what is white? Freshly fallen amorphous ice particles? Possibly freshly condensed frost from vapor? That's an interesting find, Gordan. I wonder if particle sizes can be determined in some way from the relfectance properties. -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Jul 10 2010, 09:32 AM
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Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
Large loose particles tend to be white/gray and highly scattering... In principle it is possible to determine particle size from wavelength-dependent scattering information, but for visible/uv wavelengths particles are quickly large compared to the wavelength (which is what counts), which makes it a lot harder with only visible images.
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Jul 10 2010, 01:26 PM
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 Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
QUOTE (nprev @ Jul 9 2010, 08:18 PM) I wonder if particle sizes can be determined in some way from the relfectance properties. Definitely. Grain sizes can alter the detailed spectral shape. Water ice grains of different sizes have slightly different IR spectra. -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Jul 11 2010, 01:04 PM
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Saturn on July 9th. Tethys transiting and Enceladus' shadow:
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Jul 11 2010, 01:40 PM
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 Senior Member Group: Members Posts: 1419 Joined: 26-July 08 Member No.: 4270 |
Nice!
-------------------- -- Hungry4info (Sirius_Alpha)
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Jul 17 2010, 08:44 PM
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Another one, July 15th:
Don't know which moon that is, might be Rhea judging by the color. -------------------- |
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