Subject: RE: VRML & Wild 2

From: "farnham" <[email-masked]>
Date: Tue, 20 Dec 2005 15:26:42 -0500

All

I have gone back and compared the VRML model, and Jianyang's 
model of Wild 2 to the Stardust images and the model is 
correct as it stands.  Jianyang also checked his codes and 
found they were doing what they were supposed to be doing
to produce an east longitude.

After talking to Lori, we found that the image that she 
was using, and the image that I showed in the meeting last week
were not corrected for the mirror flip in the instrument.
Comparing the model to the images in the Brownlee paper 
(which removes the flip) gives a good match.

So that lien is cleared.

Tony

> -----Original Message-----
> From: Mike A'Hearn [mailto:[email-masked]] 
> Sent: Thursday, December 15, 2005 5:52 PM
> To: Farnham, Tony
> Cc: Lori M. Feaga; A'Hearn, Michael F.; Ludmilla Kolokolova; 
> Raugh, Anne C.
> Subject: VRML & Wild 2
> 
> 
> Hi Tony,
> 
>     Lori has done a careful comparison between the visualization of 
> the Wild 2 model with VRML and with Jian-Yang's program.  The two 
> programs display similarly.  She has also done a comparison with the 
> image on the cover of Science - both programs appear to be a mirror 
> image of the picture on that cover.  Looks to me as though there is 
> most likely an east-west reversal of longitude in the model, at least 
> as it is visualized.  Since we have x,y,z, it should be possible to 
> test this.  This should be added to the lien list for the dataset.
> 
> 	Mike
> -- 
> Michael F. A'Hearn                        Tel: 301 405 6076
> Department of Astronomy                   FAX: 301 405 3538
> University of Maryland
> College Park MD 20742-2421
>