Gpredict is a satellite tracking and prediction application
written using Gtk+ and Gnome widgets by Alexandru Csete.

Part of the groundstation suite, its purpose is to track
the various amateur, weather and military satellites that
are of interest to radio amateurs.

The groundstation suite comprises Gnome-rig and Gnome-predict
and is intended to provide a low-cost amateur radio station
with the facilities of a high-end satellite station.

WWW: http://groundstation.sourceforge.net/