Precise orbit and clock for GPS, GLONASS, Galileo, BeiDou and QZSS navigation satellites.

We provide GBU, a highly precise multi-GNSS ultra-rapid orbit and clock product including GPS, Galileo, GLONASS, BeiDou2&3, QZSS. The specifications are:

  • 1-hour updates with 1-hour delay;
  • 48-hour multi-GNSS sp3 file, the first 24 hours satellite orbits are based on observation data and the last 24 hours satellite orbits are predictions, which is flagged with ā€œPā€ at the end of each line;
  • Precise orbit & clock of a maneuvering satellite available at maximum 48 hours after the maneuver;
  • Availability of the latest 1-hour orbit prediction is 99%, Availability of the latency no more than 24-hour orbit prediction is 99.999%.