Measurement and POD Models Applied in GipsyX/RTGx
| Model/Parameter | Selection |
|---|---|
| GNSS observations | Undifferenced GPS L1 phase and C/A pseudorange, 15-sec observations, 30-hour daily arcs |
| Surface forces | Custom macromodel (Table 3 and Figure 1) |
| Attitude | Measurement quaternions |
| Atmospheric density | DTM2000 (Bruinsma et al., 2003) |
| GPS satellite antenna calibrations | IGS14 Values (Rebischung & Schmid, 2016) |
| Earth orientation/rotation | JPL IGS Analysis Center IGS14 Final Solutions |
| GPS spacecraft ephemerides | JPL IGS Analysis Center IGS14 Final Solutions |
| GPS spacecraft clocks | JPL IGS Analysis Center IGS14 Final Solutions |
| Planetary and lunar ephemerides | JPL DE421 ephemerides (Folkner et al., 2009) |
| Earth gravity field | EIGEN-GRGS.RL03-v2.MEAN-FIELD (Rudenko et al., 2015) |
| Ocean tides | FES2004 tide model (Lyard et al., 2006) |
| Reference frame | IGS14 |