The results of a complex research of functioning the GSS "SBIRS-Geo 2" in orbit
Heading:
| 1Sukhov, PP, 2Epishev, VP, 1Sukhov, KP, 1Karpenko, GF, 2Motrunich, II 1Astronomical Observatory of I.I. Mechnikov National University of Odessa, Odessa, Ukraine 2Space Research Laboratory of the Uzhgorod National University, Uzhgorod, Ukraine |
| Space Sci.&Technol. 2017, 23 ;(1):63-70 |
| https://doi.org/10.15407/knit2017.01.063 |
| Publication Language: Russian |
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 obtained and analyzed more than 30 light curves in B, V, R photometric system for two satellites. As for 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 900 along the equator are enough in GEO orbit. Since DSP-satellites provide the coverage of the Earth’s surface to ±830 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.
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| Keywords: geostationary satellite; photometry; light curve; SBIRS-Geo 2; DSP; phase angle |
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