Introduction. The problem of geosynchronous satellites (GCS) behavior in their orbits is very relevant. The data of positional and photometric observations of the GSS allow us to study the behavior of these vehicles in their orbits.
Purpose. Based on complex observations, the possibility of controlling the behavior of the GSS in orbit is shown on example of 3 satellites: “Cosmos 2397”, “SBIRS-GEO 2” and “DSP-18”. Their characteristics are determined: satellite orientation, components that contribute to flares on the light curve, period of brightness, etc. other GSS photometric characteristics.
Methods. The proposed algorithm, including astrometry, astrophysical methods and computer simulation, allow to show the behavior of GSS in orbit. The authors used their own method to modelate the dynamics of the behavior of the satellites in orbit.
Results. As a result of comprehensive research model of a behavior of "SBIRS-GEO 2" in orbit is presented that differs from the published information. It is also shown that “Cosmos 2397” does not have stabilization around the axis Z.
Conclusion. DSP satellites provide the coverage of the Earth's surface to latitudes 83° with a period of 50 sec. For a full coverage all Earth's surface, including the Polar Regions, at intervals of about 15-16 seconds, it is sufficient to have four SBIRS satellites on GEO located 90° along the equator
Keywords: GEO, light curve, phase angle, photometry