Projects / SaVi


SaVi is satellite visualization software that lets you create, run, examine, and modify satellite orbits in two and three dimensions. Simulations of Iridium, Globalstar, Galileo, GPS, and other satellite constellations are included. SaVi requires Tcl and Tk on a system with Unix libraries. SaVi works well with the 3D renderer Geomview. Geomview is optional, though recommended for its 3D rendering capabilities.

Operating Systems

Recent releases

  •  12 May 2013 06:02

    Release Notes: This is a minor bugfix release which supports Cygwin transitioning to Unix Tcl 8.5, among other things.

    •  30 Apr 2011 20:45

      Release Notes: This is a minor update that adds ActiveTcl support on Mac OS X, among other things.

      •  18 Feb 2011 13:35

        Release Notes: This release builds on Tcl/Tk 8.6b1, updates the O3b script based on the latest information, adds simulations of Japanese NeLS rosette and COMMstellation, allows selection between existing J2 and classical J0 orbital models with the -orbit-model flag, provides keyboard menu shortcuts (except on buggy Mac Tk), warns against deletion of help text files, supports building with just 'make' on x86_64 Linux systems, and adds notes on packaging and release processes.

        •  06 Dec 2009 21:57

          Release Notes: This release adds a fisheye option to the plot location on the coverage map, improves Geomview snapshot handling of file paths containing a space, is compatible with Mac OS X 10.6 Snow Leopard, only uses -redrawn-menus on Mac OS X Leopard when required, is compatible with Tcl/Tk 8.5, builds on Ubuntu 9.10 and Fedora 12.0, fixes saving satellites to save all names but not sunlight, tidies up texts for narrow window widths, and makes the configuration advice script smarter.

          •  10 Feb 2009 21:53

            Release Notes: This release includes fixes for a couple of rare Tcl/Tk errors, makes -redrawn-menus the default on Mac OS X to work around a bug in using the 10.5 Leopard menubar, adds a View Source... option, and adds more elevation circles to large fisheyes.


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