Methods of rapid orbit forecasting after maneuvers for geostationary satellites

	Methods of rapid orbit forecasting after maneuvers for geostationary satellites
	Yang XuHai; Li ZhiGang; Feng ChuGang; Guo Ji; Shi HuLi; Ai GuoXiang; Wu FengLei; Qiao RongChuan
	2009
发表期刊	SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
ISSN	1672-1799
卷号	52 期号:3 页码:333-338
摘要	A geostationary (GEO) satellite may serve as a navigation satellite, but there is a problem that maneuvers frequently occur and the forces are difficult to model. Based on the technique of determining satellite orbits by transfer, a predicted orbit with high accuracy may be achieved by the method of statistical orbit determination in case of no maneuver force. The predicted orbit will soon be invalid after the maneuver starts, and it takes a long time to get a valid orbit after the maneuver ends. In order to improve ephemeris usability, the method of rapid orbit forecasting after maneuvers is studied. First, GEO satellite movement is analyzed in case of maneuvers based on the observation from the orbit measurement system by transfer. Then when a GEO satellite is in the free status just after maneuvers, the short arc observation is used to forecast the orbit. It is assumed that the common system bias and biases of each station are constant, which can be obtained from orbit determination with long arc observations. In this way, only 6 orbit elements would be solved by the method of statistical orbit determination, and the ephemeris with high accuracy may be soon obtained. Actual orbit forecasting with short arc observation for SINOSAT-1 satellite shows that, with the tracking network available, the precision of the predicted orbit (RMS of O-C) can reach about 5 m with 15 min arc observation, and about 3 m with 30 min arc observation.
部门归属	高精度时间传递与精密测定轨研究室
关键词	Geostationary Satellite Satellite Maneuver Orbit Forecasting
收录类别	SCI
语种	英语
WOS记录号	WOS:000264106800004
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/4680
专题	高精度时间传递与精密测定轨研究室
推荐引用方式 GB/T 7714	Yang XuHai,Li ZhiGang,Feng ChuGang,et al. Methods of rapid orbit forecasting after maneuvers for geostationary satellites[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(3):333-338.
APA	Yang XuHai.,Li ZhiGang.,Feng ChuGang.,Guo Ji.,Shi HuLi.,...&Qiao RongChuan.(2009).Methods of rapid orbit forecasting after maneuvers for geostationary satellites.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(3),333-338.
MLA	Yang XuHai,et al."Methods of rapid orbit forecasting after maneuvers for geostationary satellites".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.3(2009):333-338.

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