The Results of Complex Research of GSS "SBIRS-Geo 2" Behavior in the Orbit
Abstract
The new generation of geosynchronous satellites SBIRS of US Air Force early warning system series (Satellite Early Warning System) replaced the previous DSP-satellite series (Defense Support Program). Currently from the territory of Ukraine, several GSS of DSP series and one "SBIRS-Geo 2" are available to observation. During two years of observations, we have received and analyzed for two satellites more than 30 light curves in B, V, R photometric system. As a result of complex research, we propose a model of "SBIRS-Geo" 2 orbital behavior compared with the same one of the DSP-satellite. To control the entire surface of the Earth with 15-16 sec interval, including the polar regions, 4 SBIRS satellites located every 90 deg. along the equator are enough in GEO orbit. Since DSP-satellites provide the coverage of the Earth's surface to 83 deg. latitudes with a period of 50 sec, DSP-satellites should be 8. All the conclusions were made based on an analysis of photometric and coordinate observations using the simulation of the dynamics of their orbital behavior.
- Publication:
-
Kosmichna Nauka i Tekhnologiya
- Pub Date:
- April 2017
- Bibcode:
- 2017KosNT..23a..63S
- Keywords:
-
- geostationary satellite;
- photometry;
- light curve;
- SBIRS-Geo 2;
- DSP;
- phase angle.