Institute of Astronmy, Torun, Poland
In the frame of european cooperation of few stations (Brussels, Praha, Cagliari, Torino, Penc, Borowiec, Teddington, Metsahovi, Besancon and San Fernando) the method of time comparisons by TV link has been used for orbit determination of Eutelsat-F2 satellite. Observational stations are equipped with commercial TV receivers and high stability time services. The technique of observations is based on the registration of arrival time moments of synchronous pulses broadcasted by the satellite. For this type of observations special orbital software package (TOP-COGEOS) has been developed, which allows to determine the dynamical state of satellite and some additional parameters connected to applied observational technique.