GPS Satellite Predictions

Accessed:  Download file gps-ops.txt, and save it in the program directory for MICRODEM. This file is updated "periodically" with current orbital predictions.  If you want best results, you must update it.

You can get predictions for other groups of satellites.  Click on the TLE/3LE links for the groups of satellites you want (top line in each grouping, with the little table symbol, right click, and save as), and place in c:\microdem. will give you predictions to compare with these.


Uses code originally from Dr TS Kelso (downloaded a very long time ago, 1992, and a current version may not be available).

Last revision 11/11/2022