The accuracy of determination of the coordinates of tracking stations from satellite radial velocity

The title problem is analyzed in a simplified form assuming that the radius vector of the satellite orbit coincides with the line normal to a given tracking station, and that the orbit eccentricity is sufficiently small to consider the altitude of its passage constant. The theoretical analysis together with examination of experimental data indicate that the coordinates of tracking stations may be accurately determined from measurements of radial velocities of a large number of passing satellites regularly distributed in the range of observation of the stations along the azimuth and zenith distances of the traversal point (orbital point closest to the station). Proper distribution of the measurements at each passage and use of low-altitude satellites increase the accuracy of this method.