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Unmanned Spaceflight.com _ Cometary and Asteroid Missions _ Stardust Anne Frank Flyby

Posted by: djellison Nov 8 2005, 03:09 PM

I've only ever seen one image from the Anne Frank Flyby :

http://photojournal.jpl.nasa.gov/catalog/PIA02885

And to be honest, I thought 'there must be more - where's the flyby movie?' - only to find nothing....so I hit the PDS and came up with this..

about 500kb
http://www.unmannedspaceflight.com/doug_images/stardust_anne_frank.gif

I thought at first that the flickering toward the end might be the use of different filters, but checking the IMG headers, it's not - so the Filter wheel must have stuck before this flyby.

Thanks to Bjorn for fixing his img2png tool to work with Stardust imagery - MUCH appreciated Bjorn !!!

I'm going to see if there's anything to be had in terms of super-res with this lot (doubt it) - and then try Wild 2 imagery - the only movie available is a rather poor - http://stardust.jpl.nasa.gov/images/w2_flyby1.gif

Doug

Posted by: BruceMoomaw Nov 8 2005, 06:13 PM

The filter wheel stuck long before the Annefrank flyby.

Posted by: tedstryk Nov 8 2005, 11:26 PM

Good work. http://www.hohmanntransfer.com/top/stardust/5535.htm is an interesting link with the best flyby imagery I have seen.

Posted by: djellison Nov 8 2005, 11:36 PM

Doing the same for the Wild 2 flyby, looking at the data, the quality of the imaging was not great - but here it is

http://www.unmannedspaceflight.com/doug_images/stardust_wild.gif

Yup - start and end are very dark, BUT, that's about as much as I can do without ruining those other images

What I'm going to try and do is pull a photoshop action together that combines the pairs of images ( long and short exposure ) to show the comet and the coma jets at the same time, much like one or two press images, but the whole way thru

Doug

Posted by: Phil Stooke Nov 9 2005, 12:34 AM

Doug - great animations. Ted's link was good too. Some other datasets which would be fun to animate would the the first NEAR flyby of Eros, and the Mathilde encounter.

All this stuff is making me want to get back to mapping irregular objects. But the truth is, I want to do more than anyone can do in a lifetime, so I will have to make choices. Darn...

Phil

Posted by: tedstryk Nov 9 2005, 12:39 AM

But the truth is, I want to do more than anyone can do in a lifetime, so I will have to make choices. Darn...

Phil

[/quote]

I know the feeling...

Posted by: remcook Nov 9 2005, 10:10 AM

cool!

nice hand-held camcorder-effect

Posted by: tedstryk Nov 10 2005, 02:07 AM

Here is the highest resolution (not overexposed) Annefrank sequence. This was the best I could pull out of this dataset.

Posted by: Phil Stooke Nov 10 2005, 03:50 AM

Very nice, Ted.

Phil

Posted by: edstrick Nov 10 2005, 09:43 AM

The single image released by the Stardust team had this black "notch" taken out of the right end of the asteroid that was perfectly aligned with the rows and samples of the image, as if a block of bad data had been masked off.

Seeing the newly released images and the animation, the feature is real and was mostly just a chance alignment of the shadow on the right end of the asteroid's complex terrain with the row and sample of the camera.

Thanks for the GIF... I'd love to see it "navigated" to smooth out the handheld camcorder effect!

Posted by: BruceMoomaw Nov 12 2005, 08:25 AM

Don Brownlee sends me this E-mail and permits me to post it here:

"I was looking for news about Hayabusa and found the thread about AnneFrank and the lack of a movie. Our images were really interesting, and I was always disappointed that they were not pursued more seriously. The resolution and dynamic range are pretty limited, but the asteroid is really something. It is quite angular with a large blob on one end. In 3D it looked to be like it could be a contact binary -- an large angular fragment with flat faces and a large boulder-like piece at one end. It seems like it could have been a fragment that re-accreted. Interesting, but the resolution was not good enough to really see what was happening. It certainly is not a run of the mill potato-shaped asteroid."

He also attached a movie of the various photos of AnneFrank to his message, confirming that it is genuinely odd-looking -- it looks like an Indian arrowhead in virtually all the views.

Posted by: tedstryk Nov 12 2005, 01:50 PM

The best movie I have seen is the one from Bill Allen's page:

Posted by: tasp Nov 12 2005, 02:03 PM

QUOTE (tedstryk @ Nov 12 2005, 07:50 AM)

The best movie I have seen is the one from Bill Allen's page:

Enjoyed the reports on this 'mystery' flyby. Was aware of the encounter at the time, but till I came here, I had never seen any results.

Curious though, the large 'chunk' on the right side of the image, (which I agree appears to be a contact binary apparition) doesn't seem to align with the 'center line' of the main part of the body on the left. Would we expect subsequent impacts to have 'jostled' the 'chunk' into a more centerally aligned position?

I concede the distant shots make seeing this a little tricky, and perhaps the configuration of the 'two' pieces is fresh and not yet 'relaxed' into position.

Or am I all wet on this?