摘要
本文利用1970年1月至1987年12月的全球激光测月资料，确定了月球平黄经的长期加速度n的值为－″25．″4±0．″1／cy2。这一结果和用其它方法求得的n值符合得很好。利用激光测月解算n的内符精度随所用资料的时间跨度的增加而迅速提高。
The Lunar Laser Ranging data covering the interval from January 1970 to De-cember 1987 have been used to determine the secular acceleration in the mean longitude of the Moon (n) .The obtained value of n = - 25.'4±0.'1/cy2 is in agr-eement with that derived by other authors using other various methods. The uncertainty σ(n) estimated from LLR data would be decreasing rapidly with inc-rease of the data span.
出处
《中国科学院上海天文台年刊》
1994年第15期129-133,共5页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
