= OrbitSoftware =

=== TLE (two line element) computation ===




=== Visualization ===

[[ http://personal.ee.surrey.ac.uk/Personal/L.Wood/software/SaVi/ | SaVi  satellite constellation visualization ]]



=== Online apps ===

[[ http://science.nasa.gov/Realtime/jtrack/3d/JTrack3D.html | NASA 3D Realtime Satellite Tracker (Java) ]]

[[ http://www.qsl.net/kd2bd/predict.html | PREDICT Satellite tracker ]] - Debian & Ubuntu packages exist



=== Other online software ===

[[ http://www.zeptomoby.com/satellites/ | NORAD SGP4/SDP4 Implementations ]] - C++/C# ports of the NORAD algorithms for Windows

[[ http://search.cpan.org/~wyant/Astro-SpaceTrack-0.039/lib/Astro/SpaceTrack.pm | Astro-SpaceTrack-0.039 ]] - Perl module at CPAN for TLE retrieval

[[ http://orsa.sourceforge.net/ | ORSA - Orbit Reconstruction, Simulation and Analysis ]] - available as xorsa in Debian/Ubuntu


=== Local software ===

[[ SxP4TestPatch | SxP4Test Linux Patches for NORAD C++ SDG4/SDP4 implementation ]]