jgg     2015 35 (2):  199-202    ISSN: 0412-1961  CN: 21-1139/TG Research on Different Coordinates of Sun and Moon Influence on  GNSS System Errors Correction 1 State Key Laboratory of Geodesy and Earth’s Dynamics, 340 Xudong Street，Wuhan 430077, China 2 University of Chinese Academy of Sciences, A19 Yuquan Road, Beijing 100049, China 3 Institute of Geospatial Information, Information Engineering University, 62 Kexue Road, Zhengzhou 450001, China Received: 2014-03-30  Revised: null  Online: 2015-04-15 Supporting info