Rev 141 - Nov 20-Dec 10, 2010 - Hyperion and Enceladus E12 Options

[brellis]

Re: john's post about the distinction between predictability and chaos:

I'm reminded of one reason I'm so fascinated with astronomy and the science of not-yet-fully-understood objects like the Saturnian moons. As a music student, I found the concept of ''constrained random fields'' in orchestral instructions very interesting and it became a tool I continue to use in my compositions. A piece of music can progress along a ''predictable'' course, then have moments of chaos.

An educated ear might be able to ascertain the method employed in a chaotic passage of music, and thus find it ''predictable''.

Similarly, thanks to Cassini and their wonderful team, we might ascertain the chaotic aspects of Hyperion's orbit.

However, I doubt we'll ever be able to predict Earth's weather.

[Ian R]

Here's a 'tweened' flyby movie of this encounter:

http://www.youtube.com/watch?v=il1igwWjPds&fmt=22

[Hungry4info]

I keep getting an error.
This link works, however.

[ZLD]

Its a little rough but I like it just as well . Thanks for animating this. I was really curious how it would look.

[EDG]

These Hyperion pics are awesome! The movie's very cool too.

[DFinfrock]

I was really curious how it would look.

What I am really curious about is what a lander on Hyperion would see. With that complicated, tumbling, chaotic rotation, the view from the Hyperian surface, of both Saturn and Titan rising and setting at different angles and varying times of "day" must be a most unusual experience.

David

[peter59]

A surprisingly strong and well defined jets. Especially this stream to the right.
http://saturn.jpl.nasa.gov/multimedia/imag...5/N00165288.jpg

[machi]

Quick false color image (filters IR2, GRN, UV3) of Enceladus jets from yesterday's flyby.

Attached thumbnail(s)

 

[ngunn]

Superb! It's amazing how adding the colour dimension, even if it's not real as-you-would-see-it colour, still adds 'reality' to the picture. (I think you've also cleverly smoothed out the greyscale steps a bit, but I'm not sure, and I don't need to know anyway.)

EDIT: Oh, and the dark limb of Enceladus is clearly visible all the way round to the bottom left of your version. Well picked out.

[EDG]

Aesthetically speaking at least, this is a particularly gorgeous image IMO:

http://saturn.jpl.nasa.gov/photos/raw/rawi...?imageID=230048



There's about 25 of those plume images on the latest raw images index, I wonder if they'd be animatable so we can see changes in the plumes?

[EDG]

Also, were the Hyperion images the result of a targeted flyby of that moon, or was this a non-targeted flyby in which Cassini opportunistically imaged it because the geometry happened to be good at the time? (I'm suspecting it was targeted, since there's rather a lot of Hyperion images on the site!).

[djellison]

Also, were the Hyperion images the result of a targeted flyby of that moon

http://www.planetary.org/explore/topics/ca.../tour.html#2010

Sun, Nov 28, 2010
2010-332T03:29Nontargeted flyby of Hyperion (141H)
Inbound 71756.3 km flyby, speed = 4.9 km/s, phase = 73°


Thanks Emily

[EDG]

Ah! That's a stupendously handy reference - thanks!

(BTW, what's up with the UV1 filter on wheel 2? The images of Hyperion taken through that have lots of white speckles on them)

[djellison]

Could be that it's a very 'dark' filter (i.e. it's bandpass is either narrow, or well outside the best efficiency of the ccd, or both) and thus requires long exposure times and thus the raw unprocessed imagery is prone to noise.

[EDG]

Here's a 'tweened' flyby movie of this encounter:

http://www.youtube.com/watch?v=il1igwWjPds&fmt=22

Did you put that together? I'd like to mention/link to it on my blog if I could.