摘要
本文对激光测月资料分析中的相对论效应作了较系统的分析讨论,包括观测时刻的转换,TAI和TDB两种时间尺度的换算、测站的地心坐标和反射器的月心坐标到太阳系质心框架下的瞬时空间坐标的转换以及引力时延改正等一系列问题。同时比较分析了目前我们归算软件中的相对论模型,指出原模型必须作适当的改进才能和厘米级的观测精度相匹配。
The relativistic model with centimeter precision in data analyses of LLR has been described. It includes the time transformations from TAI to TDB, the time scales, and the corrections for gravitational time delay. This paper also gives the relativistic effects in the computation of the solar system barycentric positions of a station and a lunar reflector.
The comparison between the relativistic model and the original relativistic model used in the software for LLR data analyses at present is also made. We point out that the old relativistic model must be modified in order to achieve comparable accuracy to centimeter level.
出处
《中国科学院上海天文台年刊》
1993年第14期100-109,共10页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
