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Simulation Study on GEO-KOMPSAT Operational Orbit Injection  

Park, Bong-Kyu (한국항공우주연구원 정지궤도위성체계팀)
Yang, Koon-Ho (한국항공우주연구원 정지궤도위성체계팀)
Lee, Sang-Cherl (한국항공우주연구원 정지궤도위성체계팀)
Publication Information
Aerospace Engineering and Technology / v.10, no.2, 2011 , pp. 65-73 More about this Journal
Abstract
After launch, in order to inject the geostationary satellite into its operational orbit, the perigee altitude are forced to be raised to geostationary altitude by firing onboard LAE(Liquid Apogee Engine) at apogee of the transfer orbit. In this process, the LAE burn is divided into three or four separated burns in order to control the orbit very precisely by giving feedback the determined orbit informations and to inject the satellite in predefined longitude. This paper proposes an algorithm to determine LAE firing time slots and ${\Delta}V$ vectors under assumption of impulsive LAE burning, and additionally, a method to compensate errors induced by continuous burning. And computer simulations have been performed to validate proposed algorithms.
Keywords
Geostationary Satellite; Launch Early Operation; Liquid Apogee Engine;
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  • Reference
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