In the Baltic region, the territory being examined, we chose 1252, 1304, 1357, 1409, 1461, 1513, 1565, 1617 GPS data decisions (from the year 2004 to 2011) of geocentric coordinates (X, Y, Z) of the GPS stations BOR1, HELG, LAMA, MAR6, METS, OSLS, POTS, RIGA, SASS, SULD, VIS0, and VLNS (Fig.
i] is the geocentric coordinates of the EUREF GPS network stations obtained by first measurements; [X'.
Te results of calculating the displacements of the geocentric coordinates of the stations (X, Y, Z) according to the data of measurements for 7 years (2004-2011) are provided in Tables 1-3.
The displacements of geocentric coordinates (X, Y, Z) of the EUREF GPS network stations are provided in Figures 4-6.
The average annual changes in the geocentric coordinates of the stations are shown in Table 5.
concentration" project, the result of which are about 35,000 of preliminarily newly stabilized concentration points with measured geocentric coordinates.
For processing the GPS campaigns being done at the territory of the Czech Republic the EUREF subcommission recommend to apply the ETRS89 geocentric coordinate system.
ETRS89 (European Terrestrial Reference System) creates a uniform geocentric coordinate system.