Application of Accelerometer Data in Precise Orbit Determination of GRACE -A and -B

	Application of Accelerometer Data in Precise Orbit Determination of GRACE -A and -B
	Peng, Dong-Ju 1,2; Wu, Bin1
刊名	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2008-10-01
卷号	8 期号:5 页码:603-610
关键词	celestial mechanics ephemerides methods: numerical
英文摘要	We investigate how well the GRACE satellite orbits can be determined using the onboard GPS data combined with the accelerometer data. The preprocessing of the accelerometer data and the methods and models used in the orbit determination are presented. In order to assess the orbit accuracy, a number of tests are made, including external orbit comparison, and through Satellite Laser Ranging (SLR) residuals and K-band ranging (KBR) residuals. It is shown that the standard deviations of the position differences between the so-called precise science orbits (PSO) produced by GFZ, and the single-difference (SD) and zero-difference (ZD) dynamic orbits are about 7 cm and 6 cm, respectively. The independent SLR validation indicates that the overall root-mean-squared (RMS) errors of the SD solution for days 309 - 329 of 2002 are about 4.93 cm and 5.22 cm, for GRACE-A and B respectively; the overall RMS errors of the ZD solution are about 4.25 cm and 4.71 cm, respectively. The relative accuracy between the two GRACE satellites is validated by the KBR data to be on a level of 1.29 cm for the SD, and 1.03 cm for the ZD solution.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	GPS
收录类别	SCI
语种	英语
WOS记录号	WOS:000260455200011
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/19529]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.CAS, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Peng, Dong-Ju,Wu, Bin. Application of Accelerometer Data in Precise Orbit Determination of GRACE -A and -B[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2008,8(5):603-610.
APA	Peng, Dong-Ju,&Wu, Bin.(2008).Application of Accelerometer Data in Precise Orbit Determination of GRACE -A and -B.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,8(5),603-610.
MLA	Peng, Dong-Ju,et al."Application of Accelerometer Data in Precise Orbit Determination of GRACE -A and -B".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 8.5(2008):603-610.