Kaliuzhnyi, MykolaBushuev, FelixShulga, OleksandrSybiryakova, YevgeniyaShakun, Leonid S.Bezrukovs, VladislavsMoskalenko, SergiyKulishenko, VladislavMalynovskyi, Yevgen2017-02-222017-02-222016Odessa Astronomical Publicationshttps://dspace.onu.edu.ua/handle/123456789/9410An international network of passive correlation ranging of a geostationary telecommunication satellite is considered in the article. The network is developed by the RI "MAO". The network consists of five spatially separated stations of synchronized reception of DVB-S signals of digital satellite TV. The stations are located in Ukraine and Latvia. The time difference of arrival (TDOA) on the network stations of the DVB-S signals, radiated by the satellite, is a measured parameter. The results of TDOA estimation obtained by the network in May-August 2016 are presented in the article. Orbital parameters of the tracked satellite are determined using measured values of the TDOA and two models of satellite motion: the analytical model SGP4/SDP4 and the model of numerical integration of the equations of satellite motion. Both models are realized using the free low-level space dynamics library OREKIT (ORbit Extrapolation KIT).enorbit of geostationary satelliteDVB-STDOAArticle