Precision ERS-2 orbit determination combining multiple tracking techniques

	Precision ERS-2 orbit determination combining multiple tracking techniques
	Zhang, FP; Huang, C; Liao, XH; Feng, CG
刊名	CHINESE SCIENCE BULLETIN
	2001-10-01
卷号	46 期号:20 页码:1756-1760
关键词	precision orbit determination data combination variance component estimation accuracy evaluation
英文摘要	Both of the oceanographic research by using altimetry and the application of InSAR of ERS-2 satellite need the precise ephemerides of the satellite. In this note, the ERS-2 orbit is precisely determined by using SLR and PRARE observations to take advantage of the high accuracy or SLR and the widespread data coverage of PRARE. Based on the software system SODS-VCE established by us, the ERS-2 orbits in 1997 are calculated. The evaluation from. tracking data fits, endpoint consistency of orbital arcs and comparison with independent orbit implies an orbit accuracy of 5-6 cm. In radial component which can satisfy the requirement of being better than 10 cm, in oceanographic research by altimetry, being less than 20 cin in cross-track component which can meet the requirement of InSAR. In orbit computation, the method of variance component estimation is employed to weight the SLR, PRARE range and Doppler measurements properly. The results indicate that the application of the method can improve the computation accuracy efficiently.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	THERMOSPHERIC MODEL ; REFRACTION ; IMPROVEMENT ; GEODESY
收录类别	SCI
语种	英语
WOS记录号	WOS:000172304000020
公开日期	2010-07-30
内容类型	期刊论文
源URL	[http://119.78.226.72//handle/331011/10930]
专题	上海天文台_天文地球动力学研究中心
作者单位	Chinese Acad Sci, Natl Astron Observ, Shanghai Astron Observ, United Ctr Astrogeodynam Res, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Zhang, FP,Huang, C,Liao, XH,et al. Precision ERS-2 orbit determination combining multiple tracking techniques[J]. CHINESE SCIENCE BULLETIN,2001,46(20):1756-1760.
APA	Zhang, FP,Huang, C,Liao, XH,&Feng, CG.(2001).Precision ERS-2 orbit determination combining multiple tracking techniques.CHINESE SCIENCE BULLETIN,46(20),1756-1760.
MLA	Zhang, FP,et al."Precision ERS-2 orbit determination combining multiple tracking techniques".CHINESE SCIENCE BULLETIN 46.20(2001):1756-1760.