GEOSAT GM的精密轨道确定及精度估计  

PRECISE ORBIT DETERMINATION AND ACCURACY ESTIMATION FOR GEOSAT GM

作　　者：赵长印[1] 

机构地区：[1]中国科学院紫金山天文台

出　　处：《天文学报》1999年第1期89-93,共5页Acta Astronomica Sinica

摘　　要：对最近公开的ＧＥＯＳＡＴＧＭ期间的ＴＲＡＮＥＴＤｏｐｐｌｅｒ数据作了分析，利用这些数据和新的ＪＧＭ３重力场模型，计算了ＧＥＯＳＡＴ在ＧＭ期间的精密历元．９１个６天弧解给出的平均的Ｄｏｐｐｌｅｒ残差为３．４３ｍｍ／ｓ．估计出所计算的轨道径向精度约为１０ｃｍ．The newly published TRANET Doppler data for the GEOSAT GM are analyzed in this paper. Precise orbits have been calculated for the GM duration by using these data as well as the latest JGM3 gravity field model. As a result, the average Doppler residual is 3.43mm/s for all the 91 6 day arcs with an estimated radial orbit accuracy of 10cm.

关 键 词：GEOSATGM 轨道径向误差 轨道 精度估计 轨道计算 

分 类 号：P135[天文地球—天体力学]