ASTROD1中的望远镜前指量研究  

Oribt Design and Poingting Ahead Angle for Astrod 1

作　　者：宋凤刚[1] 熊耀恒[1] 倪维斗[2] 

机构地区：[1]中国科学院国家天文台云南天文台,云南昆明650011 [2]中国科学院紫金山天文台

出　　处：《天文研究与技术》2007年第3期243-248,共6页Astronomical Research & Technology

摘　　要：单航天器激光天文动力学空间计划ASTROD1是激光天文动力学ASTROD的第一步,通过发射绕太阳的无拖曳航天器,并且当航天器处于太阳背面附近时,与地面站进行深空激光测距,以执行科学任务。该文计算了ASTROD12015年的轨道、提出了判断轨道精度是否满足任务需要的方法、分析了地球和航天器的位置同望远镜前指量之间的关系并且给出了望远镜前指量的结果。As the first step of ASTROD （Astrodynamical Space Test of Relativity using Optical Devices）, ASTROD 1 is one spacecraft launched to a solar orbit to test the experimental schemes for ASTROD and to meet important scientific goals. Because a laser beam is transmitted to the spacecraft which will be near the other side of the sun and the laser takes about 1000 s from a ground station to the S/C, the Telescope Pointing Ahead needs to be considered. The orbit simulation, the way to judge the orbit precision, the relation between the Telescope Pointing Ahead and the position of the earth and the spacecraft are presented in this paper.

关 键 词：轨道设计 前指量 激光天文动力学 

分 类 号：P111[天文地球—天文学]