SaVi 1.4.5, for Satellite constellation Visualization, is now available. SaVi lets you simulate satellite orbits and coverage, and includes simulations of complete systems such as GPS, Galileo, Iridium, or O3b Networks. SaVi needs only Tcl/Tk running on unix or compatible (including Linux, Mac OS X and Cygwin). 3D rendering of satellites requires Geomview, another SourceForge project.
SaVi 1.4.5 is also available as an Ubuntu package, from:
with an Ubuntu man page:
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