satellite measurements

The aim of this work is to study the fluctuations of the components of the zenith tropospheric delay during the annual period according to the ground meteorological measurements in Ukraine. Methodolodgy. The surface values of meteorological values at the stations: Lviv, Kyiv, Kharkiv and Odesa, obtained in 2019 with an interval of 3 hours were used for the research. A total amount of 2020 measurements at each of the stations has been presented.

Purpose. Investigation of daily movement of GNSS station BRGN of GeoTerrace reference network of Institute of geodesy Lviv Polytechnic National University, by the results of GNSS and linear-angular measurements in order to exclude such movements of geodynamic observations. Methodology. At first step reference network have been created. It included 2 pillars of Beregany geodetic base line (P1, P2). For determination of precise coordinates of these pillars, static GNSS observations were done with use of double frequency receivers.

This paper analyzes the problems that occur with the current classification of state geodetic networks in the modern world.