Timescale Naming Conventions
| Abbreviation | Description |
|---|---|
| GPST | GPS system time |
| GST | Galileo system time |
| trcv | Time in the local receiver timescale; the receiver timescale is realized through the oscillator of the GNSS receiver and a clock model that is continuously updated in the real-time navigation filter to minimize the difference between the receiver timescale and GPST or, alternatively, GST. |
| tCODE | Time in the reference timescale of precise GNSS clock products of the Center for Orbit Determination in Europe (CODE); the CODE timescale is realized through a highly stable hydrogen maser clock and closely aligned to GPST. |