Table 1 Overview of orbit and clock products from the selected ACs for clock combination. ‘G’ ‘R’, ‘C’, ‘E’, and ‘J’ in the fourth column indicate GPS, GLONASS, BDS, Galileo and QZSS, respectively
AC | ID for multi-GNSS clock combination | Intervals of orbit/clock products | Constellation | Clock types |
|---|---|---|---|---|
CNES/CLS | GRM | 5 min/30 s | GRE | Integer recovery clocks |
CODE | COM | 5 min/30 s | GRECJ | Common clock for GPS and Galileo since mid-2018, code clock for the rest (Schaer et al. 2021) |
ESA | ESM | 5 min/30 s | GRECJ | Code clock |
GFZ | GFM | 5 min/30 s | GRECJ | Code clock |
JAXA | JAM | 5 min/30 s | GRJ | Code clock |
WHU | WUM | 15 min/30 s | GRECJ | Code clock |