An analysis of the performance and coordinates time series of CORS network LitPOS

Abstract

LitPOS (Lithuanian Positioning System), the network of continuously operating GNSS stations, became operational in July 2007. It provides data both for real-time and post-processing applications. LitPOS stations cover the whole territory of Lithuania. Total number of LitPOS GNSS stations during is 30 stations. Also LitPOS network includes 3 ASG-EUPOS (Poland) and 6 LATPOS (Latvia) stations.LitPOS network data re-processing was done using Bernese 5.2 software. Software was slightly improved by editing scripts and writing procedures for RINEX files preparation, for downloading other necessary data, and for getting two processing solutions from single BPE process.The analysis of coordinates time series was done with Matlab routine „GITSA" and Bernese program FODITS. An analysis of discontinuities and outliers with possible problem solutions is provided. As a result more consistent accumulated multi-year solution is presented.