Contribution of Etalon Observation to Earth Rotation Parameters under a New Observation Scenario

doi:10.3390/app12104936

NTSC-IR > 导航与通信研究室

	Contribution of Etalon Observation to Earth Rotation Parameters under a New Observation Scenario
	Zhang, Xiaozhen 1,2,3; Kong, Yao 4; Lu, Xiaochun1,2,3 ; Zou, Decai1,2,3
	2022-05-01
发表期刊	APPLIED SCIENCES-BASEL
卷号	12 期号:10 页码:20
摘要	The standard products of the International Laser Ranging Service (ILRS) are mainly based on the two laser geodynamics satellites (LAGEOS) due to the sparse observations of the Etalon satellites. With improvements in the ability to track high-altitude satellites, ILRS conducted a 3-month Etalon tracking campaign. In this paper, we study the contribution of more Etalon observations in the new observation scenario to weekly ILRS products, such as station coordinates, Earth rotation parameters (ERPs) and satellite orbit. We compare the ILRS products estimated from LAGEOS-only solutions and LAGEOS+Etalon solutions. In the new observation scenario of 2019, the numbers of observations of Etalon satellites are 1.4 and 1.7 times larger than those in 2018. It is shown that the quality of station coordinates, and the satellite orbit of LAGESOS satellites are only slightly affected by the increase in Etalon observations of the campaign. However, for station 1868, which is dedicated to high-altitude satellites, the root mean square (RMS) values of the residuals in the N, E, and U components are improved by 3.1 cm, 2.1 cm and 2.3 cm, respectively. The internal precision of orbit for Etalon-1/2 satellites in tangle and normal directions are improved by 1.5 cm and 2.9 cm, respectively. Most remarkably, the standard deviations for Xp, Yp and LOD can be improved by 6.9%, 14.3% and 5.1%, respectively, compared with the International Earth Rotation System (IERS)-14-C04 series. With our research, the ILRS could increase efforts on Etalon satellite tracking without affecting the routine observations of LAGEOS satellites.
关键词	satellite laser ranging (SLR) Etalon LAGEOS earth rotation parameters
资助者	Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China
DOI	10.3390/app12104936
关键词[WOS]	SLR ; CONSTELLATION ; GNSS
语种	英语
资助项目	Natural Science Foundation of Shaanxi Province, China[2021JQ-656]
资助者	Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China ; Natural Science Foundation of Shaanxi Province, China
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000804285400001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/13822
专题	导航与通信研究室
通讯作者	Kong, Yao
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Precise Positioning & Time Technol, Xian 710600, Peoples R China 4.Xian Polytech Univ, Sch Elect & Informat, Xian 710048, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaozhen,Kong, Yao,Lu, Xiaochun,et al. Contribution of Etalon Observation to Earth Rotation Parameters under a New Observation Scenario[J]. APPLIED SCIENCES-BASEL,2022,12(10):20.
APA	Zhang, Xiaozhen,Kong, Yao,Lu, Xiaochun,&Zou, Decai.(2022).Contribution of Etalon Observation to Earth Rotation Parameters under a New Observation Scenario.APPLIED SCIENCES-BASEL,12(10),20.
MLA	Zhang, Xiaozhen,et al."Contribution of Etalon Observation to Earth Rotation Parameters under a New Observation Scenario".APPLIED SCIENCES-BASEL 12.10(2022):20.