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ORBIT DETERMINATION OF GPS AND KOREASAT 2 SATELLITE USING ANGLE-ONLY DATA AND REQUIREMENTS FOR OPTICAL TRACKING SYSTEM

GPS 위성과 무궁화 2호의 광학관측데이터를 이용한 궤도 결정 및 정밀 궤도 결정을 위한 광학관측시스템 제안

Lee, Woo-Kyoung;Lim, Hyung-Chul;Park, Pil-Ho;Youn, Jae-Hyuk;Yim, Hong-Suh;Moon, Hong-Kyu
이우경;임형철;박필호;윤재혁;임홍서;문홍규

  • Published : 2004.09.01

Abstract

Gauss method for the initial orbit determination was tested using angle-only data obtained by orbit propagation using TLB and SGP4/SDP4 orbit propagation model.. As the analysis of this simulation, a feasible time span between observation time of satellite resulting the minimum error to the true orbit was found. Initial orbit determination is performed using observational data of GPS 26 and Koreasat 2 from 0.6m telescope of KAO(Korea Astronomy Observatory) and precise orbit determination is also performed using simulated data. The result of precise orbit determination shows that the accuracy of resulting orbit is related to the accuracy of the observations and the number of data.

Keywords

Gauss method;initial orbit determination;angle-only data;precise orbit determination

References

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  2. Sabol, C., Luu, K, K., & Alfriend, K. T. 2004, AAS 04-198, in press
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  4. Sabol, C., Luu, K, K., & Kervin, P., Nishimoto, D., Hamada, K., & Sydney, P. 2002b, in AAS/AIAA Space Flight Mechanics Meeting, eds. K. T. Alfriend, B. Neta, K. Luu, & C. A. Walker (San Diego: Univelt. Inc.), p.397
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