swipos-GIS/GEO provides real-time kinematic (RTK) correction data for a virtual reference station (VRS) based on data from the 31 AGNES stations and several stations in neighboring countries.For applications with increased accuracy requirements or if no internet connection is available, swipos-GIS/GEO provides the required reference data in the form of RINEX files on the swipos shop.Currently we support all 4 global satellite systems, all four together increase the availability of satellites but...