Gpredict is a real time satellite tracking and orbit prediction program. Besides the general orbital data for satellites, gpredict can also calculate the footprint, visibility, doppler shift, signal loss, and signal delay for each satellite relative to one or more ground stations. The calculated data can be viewed in tables, on maps, or on polar graphs.
| Tags | Communications Ham Radio education Scientific/Engineering Astronomy Space |
|---|---|
| Licenses | GPL |
| Operating Systems | POSIX Linux Mac OS X BSD |
| Implementation | C |
Recent releases


Changes: This release includes several minor bugfixes in the radio controller and new satellite transponder data files submitted by users.


Changes: Doppler tuning using full-duplex radios has been implemented, and several minor bugs have been fixed.


Changes: The radio controller algorithm has been improved and several bugs identified in the beta 1 release have been fixed.


Changes: This release adds support for controlling radios and antenna rotators via Hamlib.


Changes: This release includes many bugfixes, and new functionality to save satellite pass predictions.
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