Gpredict is a real-time satellite tracking and orbit prediction application. It can track an unlimited number of satellites and display their position and other data in lists, tables, maps, and polar plots (radar view). Gpredict can also predict the time of future passes for a satellite, and provide you with detailed information about each pass. Gpredict will also allow you to track satellites relatively to different observer locations - at the same time. Gpredict is free software licensed under the GNU General Public License.
Gpredcit has its own product website at http://gpredict.oz9aec.net/