The terrestrial and lunar reference frame in lunar laser ranging
The terrestrial and lunar reference frame in lunar laser ranging
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DOI：
10.1007/s001900050227
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发表时间：
1999-04
影响因子：
4.4
通讯作者：
C. Huang;W. Jin;H. Xu
中科院分区：
文献类型：
--
作者：
C. Huang;W. Jin;H. Xu
讨论了用月球激光测距确定三个观测站和四个后向反射器坐标时的初值问题和解的稳定性。实际迭代计算表明，台站坐标可以收敛到1 cm左右，但不同分析中心或不同年份计算的纵向分量会略有差异。有几个因素，其中之一是由采用的月球星历的方向偏差引起的月球赤经右移，这可以使所有观测站的纵向分量一起沿着纵向以相同的角度旋转。此外，硒中心坐标系是稳定的，但月球三度引力系数的变化或调整将导致反射器沿经度或绕Y轴旋转的同时移动。
The initial value problem and the stability of solution in the determination of the coordinates of three observing stations and four retro-reflectors by lunar laser ranging are discussed. Practical iterative computations show that the station coordinates can be converged to about 1 cm, but there will be a slight discrepancy of the longitudinal components computed by various analysis centers or in different years. There are several factors, one of which is the shift of the right ascension of the Moon, caused by the orientation deviation of the adopted lunar ephemeris, which can make the longitudinal components of all observing stations rotate together along the longitudinal direction with same angle. Additionally, the frame of selenocentric coordinates is stable, but a variation or adjustment of lunar third-degree gravitational coefficients will cause a simultaneous shift along the reflectors' longitudes or rotation around theYaxis.