Model and algorithm for choosing the location of navigation system antennas’ for spacecraft remote sensing

The mathematical model and algorithm for estimating the relative time spent by navigation satellites (NS) and spacecraft remote sensing (RS satellites) in terms of mutual visibility taking into account the possibility of shielding the receiving antennas by the Earth or by the elements of a spacecraft design were devised. The technique of selecting the mounting of navigation system antennas on the body of the spacecraft by the criterion of the maximum relative time of mutual visibility of at least the given number of the navigation satellites.