Gpredict is a satellite tracking and prediction application written using Gtk+ and Gnome widgets.
Part of the grounstation 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.
The port for FreeBSD has just been released. It is also available for Linux.