TABLE 1

Real-Time GNSS Products Used for Processing

IdentifierExplanationTransmissionUpdate Interval Orbits/ClocksAccuracy Orbits/Clocks
CNES RTCNES real-time productsInternet (real-time stream)5 min / 5 s3–5 cm / 0.05–0.15 ns
IGS URPredicted part of the IGS ultra-rapid productsInternet (file transfer protocol)15 min5 cm / 1.5 ns
BRDCBroadcast ephemeris from the GNSS navigation messageSatellite link2 h1 m / 2.5 ns