IGS repro3 products by Graz University of Technology (TUG): Satellite orbits

Orbits are given at a 5-minute sampling period. TUG's contribution to repro3 was computed using the open-source software GROOPS. The processing included all available stations from the proposed repro3 station list (1212 stations), reaching more than 800 stations per day in the mid-2010s.

All available code and phase observations on all frequencies (except Galileo E6) have been used at the full 30-second sampling period. The following background models and corrections were used during the processing: Earth rotation: IERS 2010 plus high-frequency EOP model (Desai and Sibios, 2016) Earth's gravity field: GOCO06s plus C20 replacement from SLR Moon, Sun and planet ephemerides: JPL DE421 Solid Earth tide: IERS 2010 Ocean tide: FES2014b Pole tide: IERS 2010 (linear mean pole) Ocean pole tide: Desai (2004) (IERS 2010, linear mean pole) Atmospheric tides: AOD1B RL06 Relativistic corrections: IERS 2010 Tropospheric corrections: VMF3 Solar radiation pressure: Box-wing + ECOM2 Earth radiation pressure: Box-wing Antenna thrust: Steigenberger et al. (2017)