Welcome to the GPS Lab

These pages show the daily statistics of the accuracy of the GPS Broadcast Ephemeris (Broadcast Orbit) and the WAAS-corrected Orbit.

Choose the desired orbit type (Broadcast Orbit or WAAS-corrected Orbit), enter the date and choose the comparison orbit. After pressing the "Show table"-Button you will see the statistics.

Keep in mind that the statistics become available with a delay of 2 days due to the availability of the IGS Rapid Orbit. Comparisons with the IGS Final Orbit (more accurate) become available with a delay of 20 days.




The original software is written by Bart Peeters (Improvements made by Holger Jannasch).