The results of the IGN : ITRF2014
The International Terrestrial Reference Frame (ITRF) is the result of an inter-technique combination of all four space geodetic techniques:
- Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS)
- Global Navigation Satellite Systems (GNSS)
- Satellite Laser Ranging (SLR)
- Very Long Baseline Interferometry (VLBI)
The latest ITRF realization was recently published as ITRF2014. Data from all techniques was consolidated from the late 1970s until the end of 2014.
The International VLBI Service for Geodesy and Astrometry (IVS) is responsible for the VLBI contribution. Currently nine IVS Analysis Centers and institutions where included in combined IVS contribution to the ITRF2014.
The following table lists the participation of the VLBI institutions in detail:
Contributing Analysis Centers
Overall 5796 combined sessions in a SINEX format have been submitted as IVS contribution to the ITRF2014.
Results of the Station Coordinates, Earth Orientation Parameters, Scale and Baselines are described in the following subitems.