Thanks to everyone who replied. There were two solutions, Pre filter the download from Celestrak so that only the wanted sats go into the TLE file. Edit the TLE file in Orbitron to remove the unwanted sats. Both good solutions. 73 John G7HIA _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb