  GrandTour is a wireframe simulator for the Voyager and Giotto space
missions.  It is freeware and may be distributed without limitations, but
not changed.

  GrandTour will run on just about any PC computer, except very old ones.
GrandTour is contained in one small zip file (under 400KB), which contains
the program and mission data for Voyager 1 and 2 at Jupiter and Saturn,
Voyager 2 at Uranus and Neptune, and Giotto at Halley's Comet.

  To install GrandTour, extract the distribution file, grandt31.zip, into
one directory. To now run, execute the GrandTour program, gt.exe, from DOS
or any Windows application running on top of DOS. For Windows users, it is
useful to create Windows icons to facilitate running.  Once the program is
running, follow the on-line help instructions. See manual.txt for more
information.

  GrandTour is a version of the MIP program (public domain, distributed in
NASA's software catalog, COSMIC) originally developed at JPL over several
years. MIP, GrandTour, and the GrandTour manual were written by John D.
Callahan (johndcal@mail.com, 8601 Sunland Blvd. #44, Sun Valley, CA 91352).