STL Tracker Icon

STL Tracker
The next generation of satellite tracking software for Windows
STL Tracker screenshot
Satellite tracking software for Windows
Tracker provides the next generation of real-time satellite tracking software for Windows, allowing the user to quickly and easily track any number of satellites in a variety of graphical and textual formats. Whether you need a robust and powerful tracking program for your satellite mission, or are just interested in what is in orbit around us, Tracker is the program for you. Amongst other features Tracker provides: * powerful and intuitive interface * flexible and extensive configuration options * fast and accurate algorithms * large selection of graphical and textual views * ability to save images and movies * ability to save and load sessions * links to the NSSDC for detailed satellite information * updates TLEs from CelesTrak, Space-Track, and local or remote files * supports creation of horizon masks
Technical details
STL Tracker from Windows
Microsoft Windows® XP, Vista, 7, 8, 8.1, or 10. At least 50 MB free hard disk space.
OS Support:
Win2000, WinXP, Win7 x32, Win7 x64, Windows 8, Windows 10, WinServer, WinOther, WinVista, WinVista x64
Release date:
June 11, 2021
Sumus Technology Limited (
STL Tracker Changelog

• Add ability to center a view on a satellite or observer using the right-click context menu • Add optional Julian date parameter to LON_LAT_ALT connection command • Correctly round displayed times to nearest second in some textual views • Update satellite TLEs, groups, and owners