http://packages.debian.org/

Gpredict is a real time satellite tracking program for GNOME, based on the tracking engine of John Magliacane's excellent satellite tracker Predict.

Gpredict includes the following features:

 * Tracking an infinite number of satellites only limited by the
   physical memory and processing power of the computer.
 * Display the tracking data in lists, maps, polar plots and any
   combination of these.
 * You can have many modules open at the same either in a
   notebook or in their own windows. The module can also run in
   full-screen mode.
 * You can use many ground stations. Ground station coordinates
   can either be entered manually or you can get some appriximate values
   from a list with more than 2000 predefined locations worldwide.
 * Predict upcoming passes for satellites, including passes where a
   satellite may be visible and communication windows
 * Very detailed information about both the real time data and the
   predicted passes.
 * Gpredict can run in real-time, simulated real-time (fast forward and
   backward), and manual time control.
 * Doppler tuning of radios via Hamlib rigctld.
 * Antenna rotator control via Hamlib rotctld.

http://gpredict.oz9aec.net/

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 is different from other satellite tracking programs in that it allows you to group the satellites into visualisation modules. Each of these modules can be configured independently from the others giving you unlimited flexibility concerning the look and feel of the modules. Naturally, 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. This gives you the freedom to use and modify gpredict to suit your needs. Gpredict is available as source package as well as precompiled binaries for Linux, Mac OS X, and Windows via third parties.

Gpredict Features

    * Fast and accurate real-time satellite tracking using the NORAD SGP4/SDP4 algorithms.
    * No software limit on the number of satellites or ground stations.
    * Appealing visual presentation of the satellite data using maps, tables and polar plots (radar views).
    * Allows you to group satellites into modules, each module having its own visual layout, and being customisable on its own. Of course, you can use several modules at the same time.
    * Radio and antenna rotator control for autonomous trakcing.
    * Efficient and detailed predictions of future satellite passes. Prediction parameters and conditions can be fine-tuned by the user to allow both general and very specialised predictions.
    * Context sensitive pop-up menus allow you to quickly predict future passes by clicking on any satellite.
    * Exhaustive configuration options allowing advanced users to customise both the functionality and look & feel of the program.
    * Automatic updates of the Keplerian Elements from the web via HTTP, FTP, or from local files.
    * Robust design and multi-platform implementation integrates gpredict well into modern computer desktop environments, including Linux, BSD, Windows, and Mac OS X.
    * Free software licensed under the terms and conditions of the GNU General Public License allowing you to freely use it, learn from it, modify it, and re-distribute it.

Future Plans

    * Voice announcements.
    * Predict communication window between two observers.
    * Orbital Mechanics Lab.
    * Interplanetary orbits.
    * Obstacles in the line of sight of the observer.