ANALYSIS OF IMPACT OF ERP PREDICTION ERROR TO
ASTRONOMICAL GEODESY
1)Institute of Navigation and Aerospace Target Engineering，Information Engineering University，Zhengzhou 450052
Abstract The accuracy of 30 and 365 days prediction value of ERP were respectively analyzed，as well as their impact to astronomical geodesy were analyzed.Analysis results show that：the 365 days prediction values of polar motion and 30 days prediction values of length of day（LOD）could be used in astronomical longitude and latitude measurement，and 365 days prediction values of ERP could be used in astronomical azimuth measurement.
Key words ：
Earth Rotation Parameter(ERP)
polar motion;length of day
astronomical longitude and astronomical latitude
astronomical azimuth
Received: 28 August 2013
Published: 21 April 2014
Cite this article:
Li Chonghui,Zheng Yong,Zhang Chao et al. ANALYSIS OF IMPACT OF ERP PREDICTION ERROR TO
ASTRONOMICAL GEODESY[J]. jgg, 2014, 34(2): 132-136.
Li Chonghui,Zheng Yong,Zhang Chao et al. ANALYSIS OF IMPACT OF ERP PREDICTION ERROR TO
ASTRONOMICAL GEODESY[J]. jgg, 2014, 34(2): 132-136.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I2/132
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