DETERMINATION OF THE STATION COORDINATES FOR QUALITY CONTROL OF THE SATELLITE LASER RANGING DATA

The paper presents the method of quality control of the SLR data on the base of the station topocentric coordinates. The coordinates were determined from monthly orbital arcs of satellites LAGEOS-1 and LAGEOS-2. The orbital arcs were calculated on the basis of results of 15-17 fixed stations with very good quality of coordinates in ITRF2000 system. The orbital arc RMS was on a level of 1.8 cm. The differences between topocentric coordinates obtained from orbital results and local geodetic tie were presented for three sites: Grasse (7835-7845) from 4.5-year period, Potsdam (7836-7841) from year 2003 and Maidanak (1864-1863) for the period from May 2002 to the end 2003. The differences between coordinates determination for two colors for stations Zimmerwald (7810, 6810) and Concepcion (7405, 6405) were also presented. The coordinates and velocities of Riyadh station (7832) in ITRF2000 system has been corrected and Arabian tectonic plate motion were determined. The coordinates determination and control of their stability for the new points were presented for FTLRS system: Ajaccio (7848) and Chania (7830). The example of continuous coordinates determination in the long period is Borowiec SLR station (7811). The stability of coordinates and the movement of Eurasian tectonic plate for this station were determined for the 10-year period from 1993.5 to 2003.5