Pass Update is a program which will allow the you to automatically update groups of two-line element sets. This program supports the maintenance of user-defined special groups of satellites for easy use in other packages and allows you to update any or all of these files at one time. For example, you may want to maintain separate TLE (two-line element) files on groups of weather satellites e.g., NOAA.TLE, METEOR.TLE) or amateur radio (e.g., AMATEUR.TLE
