On Oct 27, 2012, at 9:03 PM, George Henry ka3hsw@att.net wrote:
There used to be a program called NASAWASH that would allow you to clean up a TLE file by specifying, in a text file, which birds you were interested in, and then running the program against the new TLE file each time you downloaded it. It would then output a TLE file containing only the sats you specified. I think it was available for download from the AMSAT files area.
NASAWASH is still available at http://www.amsat.org/amsat-new/tools/softwareArchive.php#pc-util or direct from me at http://www.mustbeart.com/software/nasawash.html -- but it doesn't have that feature. It cleans up a TLE file but can't select a subset of the satellites.
There are a couple of other old DOS programs still available on the AMSAT web site that do have the feature. Follow the link above and look for EXTRACT or SORTNENG.
73 -Paul kb5mu@amsat.org