RE: Visual Elements Lists

stu@huston.mdc.com
Wed, 26 Jun 96 09:48:17 PST

>I'm wondering if anyone can supply me with a good site for 
>downloading VISUAL elements. I'm using STSPLUS and have been using 
>the ftp://archive.afit.af.mil/pub/space/visual.tle to download the 
>visual elements but they appear to be somewhat limited as I see 
>alot of visual satellites/RB's going over that are not in the 
>Visual.TLE that I am downloading. Any help would be greatly 
>appreciated.
>
>
I generally download the big files from the JPL site:

ftp://kilroy.jpl.nasa.gov/pub/space/elements/satelem

Then I run the file through a program I wrote called tlesum, which reads the TLE 
file and a file called visual.asc, which contains a list of "visual" spacecraft 
and their USSPACECOM and COSPAR identifiers.  It creates a file called visual.tle 
containing only those satellites that were in both files.  It also generates a 
summary file with inclination, apogee/perigee, etc., for the entire list of 
objects.  The whole thing is crude, but effective.

Of course, it's a subject of some debate as to what constitutes "visual" - I've 
only seen a fraction of the objects in my list.

If anyone is interested, I can upload the program and visual.asc files to the 
Oxford site.
------------------------------------------------------
Stu Huston                 McDonnell Douglas Aerospace
stu@huston.mdc.com         A3-Y957 M/S 11-3
     (714) 896-4787        5301 Bolsa Ave.
FAX: (714) 896-2305        Huntington Beach, CA 92647
06/26/96                   09:48:17
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