确定JYD和BIH地极坐标间系统差的长期项  

DETERMINATION OF LONG TERMS OF THE SYSTEMATIC DIFFERENCE BETWEEN THE JYD AND BlH POLAR COORDINATE SYSTEMS

作　　者：钱昌夏 李正心 

出　　处：《中国科学院上海天文台年刊》1992年第13期56-61,共6页Annals Shanghai Astronomical Observatory Chinese Academy of Sciences

摘　　要：本文将JYD地极坐标系统的长期分量x0、y0与BIH、CSR系统的x0、y0作了比较,并对前者的相对长期稳定度进行了分析。在此基础上对JYD、BIH两种地极坐标之间的系统差进行了研究。From a comparison of the long term components Xo and Yo among the three polar coordinate systems: JYD, BIH and CSR, an analysis of the long term stability of the JYD system is made; The long terms of the systematic difference between the JYD and BIH systems is also given.

关 键 词：天文地球动力学 地极坐标 系统差 天体测量 稳定度 

分 类 号：P127.4[天文地球—天体测量]