Testing the Operational Quality of the Permanent GNSS stations network within AGROS RTK Service

Using the Active Geodetic Reference Frame of Serb ia (AGROS) RTK service one can determine spatial local reference network coordinates. Such n etwork represents a local realization of the spatia l reference system spreading over the area where a st ate urvey is performed. We presented a research performed along the polygon used for student practi ce in 2012/13. The goal of the investigation was te sting a quality and reliability of the AGROS network. We ma de a measurement plan for a ten days period. We controlled the quality of obtained results accordin g to the parameters for following and controlling t he measurements ( σp<2 cm, σh<3 cm, PDOP<6). All calculations were done on WGS-8 4 ellipsoid in Cartesian coordinates, in order to avoid the error of the coo rdinate transformations into a projection plane.