METHODS OF LONG BASELINE GNSS-BASED GEODETIC TIE IN THE GSK-2011 REFERENCE FRAME

Abstract

On a base of GNSS processing of two-year observations on experimental geodetic network the methods of long baseline geodetic tie in the GSK-2011 reference frame were investigated. From the point of view of systematic errors affecting final results – estimation of station coordinates – were studied both rigorous and simplified methods of geodetic tie, those of practical demand. From differ-ent long baseline geodetic tie methods’ results comparison systematic errors’ main properties were es-timated, both their possible level in the present and their behavior in dependence of using geodetic tie method. The article gives the recommendations for the use of approximate geodetic tie methods how to avoid significant coordinate deformations, caused by systematic errors of long baseline geodetic tie, in the coordinates of both standalone station and local geodetic network.