Description: The short analysis of GPS of apparatus is conducted, as a satellite multiposition measuring system. A short conclusion is done that on principles of construction and functioning of GPS an apparatus corresponds the multiposition radio-location system. The features of co-ordinate attachment of the agricultural fields of Ukraine are examined by the satellite radio navigation system on a geostationary orbit. It is suggested to pass from the global to the regional level decision of tasks of satellite navigation. For co-ordinate attachment of the agricultural fields of Ukraine it is suggested to utillize constellation of radio navigation vehicles only on a geostationary orbit. The synthesis of constellation of спутников is made. It is suggested to shorten the number of radio navigation vehicles from 24th to 2th. Potential exactness of determination of geographical co-ordinates of agricultural objects of Ukraine is estimated. The aims of further researches are formulated.
Keywords: mathematical model, co-ordinate attachment, agricultural fields, navigation apparatus, geostationary orbit