Printable Version of Topic

Click here to view this topic in its original format

Unmanned Spaceflight.com _ Cassini's ongoing mission and raw images _ Enceladus the movie

Posted by: Bjorn Jonsson Apr 13 2008, 07:22 PM

I now have a greatly improved version of the Enceladus DEM mentioned near the end of http://www.unmannedspaceflight.com/index.php?showtopic=1174.

I used this new DEM to do a 951 frame flyby animation. The field of view is 40 degrees and we get as close as ~140 km from the surface. Vertical relief is exaggerated by a factor of 2. The animation requires the http://www.divx.com/. It can be downloaded here (5.6 MB):

http://www.mmedia.is/bjj/misc/css_stuff/anim/encel_dem_anim.avi

A sample frame from the animation:

It should be noted that a lot of the small scale details are from the texture map draped over the DEM and not from the DEM itself. The resolution of the DEM is several times lower than the resolution of the images used to create the DEM. This is what the DEM looks like when the texture map is omitted:

Not nearly as pretty as the sample frame above but at least it's obvious what this is.

The entire DEM looks like this:

The altitude range is ~4 km. The quality of this DEM is somewhat lower than the quality of the Iapetus DEM mentined here a few times in the past several weeks (in particular http://www.unmannedspaceflight.com/index.php?showtopic=4994). However, it's much better than the Mimas DEM mentioned in http://www.unmannedspaceflight.com/index.php?showtopic=5068.

This is an elevation profile through one of the craters (distances are approximate):

And the profile's location:

Posted by: nprev Apr 13 2008, 11:07 PM

Bjorn...major WOW!!! That animation was just amazing, beyond professional quality!

Posted by: tedstryk Apr 17 2008, 12:54 AM

I totally missed this. That is a really amazing clip!

Posted by: DrShank Apr 22 2008, 03:51 AM

here is a clip from a similar film i made last year. alas the .mov is far too large to post here but i am working on a website to post a bunch of these things. this one was an early product before a few kinks were worked out

paul

Posted by: DrShank Apr 22 2008, 03:54 AM

here is a better view