OGPSH alappont pótlása a Gellért-hegyen

Abstract

Due to large-scale renovation and construction work on Gellért Hill, in the Citadel area, the OGPSH base point established in the western courtyard of the fortress was destroyed. To replace it, the base point established in 1934 in the eastern courtyard, on the site of the former observatory, was designated. The article describes the process of preparing, executing, and processing GNSS measurements. This task is interesting because it involves a special geodetic point (the origin of multiple systems), which requires a unique solution.