Correction of FAGN points velocities by results of GNSS measurements

Abstract

The method of determining the velocities of the Fundamental Astronomical and Geodetic Network (FAGN) points from the coordinates time series obtained from processing GNSS measurements is considered. The criteria for estimation the quality of the solution, the issues of adequate estimation of accuracy and data control are presented. Proposals for the compilation of a priori weight matrix of measurements and velocities are considered. The importance of preliminary detection and exclusion of rough measurements is noted. The results of determining the OXTK point velocities are presented, the analysis of the results is demonstrated. It is proposed to use the decision analysis tools discussed in the article when automating the process of determining the FAGS points velocities, and the listed criteria for evaluating the results should be displayed in reports. It is recommended to publish on the RGS-center website not only the coordinates and velocities of the FAGS points, but also their average square errors.