My Assistant
Titan's Haze Layers |
May 12 2009, 01:39 AM
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Here is an animated GIF of the May 5th 2009 star occultation sequence from the CL1 VIO image set:
(click to animate) For this stack, the limb of Titan was used as the reference for alignment. The contrast has also been balanced between the images of the sequence. -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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May 12 2009, 04:52 AM
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
For a spatial reference point, I'll use the outer edge of the detached haze layer. This feature seems to show up in both the CL1 VIO and the CB2 CL2 filtered images.
So the mapping of the haze layers will be downward from the outer edge of the detached haze layer. (Anyone got a reference for the altitude of the outer edge of the haze layer from the surface?) Using the recent Planetary Photojournal images (and reported pixel scales), here are two crops of the haze structure from PIA11485 and PIA11468. Lining them both up and assuming similar structures, the measured pixel values translated to distance seems to match up. The detached haze layer is about 60 km thick, and the distance from the outer edge of the detached haze layer to the outer edge of the inner thicker haze layer (but still blue scattering) is about 150 km. Lacking an absolute scale, I'll assume the haze structure is the same in the May 5th images and that the distance from the outer edge of the detached haze layer to the inner thicker haze layer is still about 150 km. -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Juramike Titan's Haze Layers May 12 2009, 01:39 AM
Jason W Barnes QUOTE (Juramike @ May 11 2009, 06:39 PM) ... May 12 2009, 01:42 AM
volcanopele That's Alpha Eridani, a 0.45 mag blue-giant st... May 12 2009, 01:57 AM
Juramike Layer stack aligned:
(Not sure of the reason fo... May 12 2009, 02:35 AM
Juramike Control points added to contrast balance the image... May 12 2009, 02:44 AM
remcook The detached haze layer is at 520 km
link (hope it... May 12 2009, 07:11 AM
remcook The curvature of the path might be due to refracti... May 12 2009, 07:19 AM
Juramike Been doin' some readin (Thanks for the pointer... May 14 2009, 03:58 AM
Juramike Corrected graphic with values assuming an inner ed... May 14 2009, 11:20 AM
Jason W Barnes QUOTE (Juramike @ May 14 2009, 04:20 AM) ... May 14 2009, 04:44 PM
Juramike Here is the sequence of leveled and aligned (shift... May 15 2009, 03:03 AM
Juramike For each CL1-VIO subtracted image, I used the Phot... May 15 2009, 03:52 AM
ugordan Mike, if you're doing what I think you are, yo... May 15 2009, 08:38 AM
Juramike I was worried about that:
I set 4 control points ... May 15 2009, 02:03 PM
Juramike Here is a graphic showing the placement of the con... May 16 2009, 01:26 AM
Juramike Here is an animated GIF of the rotated and aligne... May 16 2009, 04:23 AM
Juramike Cool! I think there is a bonus occultation by... May 16 2009, 05:25 AM
Juramike Reworked the CL1-VIO filtered image. Here is a co... May 17 2009, 08:27 PM
Juramike Corrected absolute altitudes of the CL1-VIO filter... May 17 2009, 08:31 PM
Juramike Stacked images of the May 5th occultation of Arche... May 17 2009, 08:41 PM
Juramike Here are the control points for the CB2 CL2 calibr... May 17 2009, 09:03 PM
Juramike Here is a coordinated and rotated image showing th... May 17 2009, 09:59 PM
Juramike To calculate the distance from the CB2 CL2 images ... May 17 2009, 10:48 PM
Juramike Here is the graphed relative transmission data of ... May 18 2009, 01:57 AM
Juramike Here is the same graph as above, but plotted on a ... May 18 2009, 03:30 AM
Juramike Error analysis of my derived occultation data.
A... May 19 2009, 11:56 AM
Juramike Image showing really really subtle dark details of... May 26 2009, 04:24 AM![]() ![]() |
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