高反射率CZ-2C上面级的定轨研究  

Orbit Determination Research of High Reflectivity CZ-2C Upper Stage

作　　者：梁智鹏[1] 宋清丽[1] 温冠宇[1] 刘承志[1,2] 韩兴伟 LIANG Zhi-peng;SONG Qing-li;WEN Guan-yu;LIU Cheng-zhi;HAN Xing-wei(Changchun Observatory, National Astronomical Observatories, CAS, Changchun 130117, China;Key Laboratory of Space object and Debris Observation, Purple Mountain Observatory,Chinese Academy of Sciences, Nanjing 210008, China)

机构地区：[1]中国科学院国家天文台长春人造卫星观测站,长春130117 [2]中国科学院空间目标与碎片观测重点实验室,中国科学院紫金山天文台,南京210008

出　　处：《空间碎片研究》2017年第3期13-19,共7页Space Debris Research

摘　　要：使用长春人卫站高重复频率卫星激光测距(SLR)系统对在轨的高反射率CZ-2C火箭上面级空间碎片进行了测量和定轨。利用虚拟观测站辅助的单站定轨方法,实现了单站测距资料改进轨道。改进后,轨道精度达到0.33km,基本满足激光测距所需的预报精度要求,可以维持激光测距站对空间碎片目标的独立观测。高重复频率SLR数据分析表明,目标存在多个反射器且缓慢自转。Tracking and precise orbit determination of a CZ-2C upper stage is carried out with high repetition rate satellite laser ranging (SLR) system in Changchun Observatory. Orbit improvement is done by using single-station SLR orbit determination method, aided by virtual stations. The improvement gives 0. 33km orbital accuracy that meets SLR prediction requirement. With such procedure, stand-alone laser ranging station could maintain operation of tracking this target. Analysis of high repetition rate SLR data implies existence of multiple reflectors and slow spin of the target.

关 键 词：卫星激光测距 空间碎片 轨道确定 运载火箭 上面级 

分 类 号：P228.5[天文地球—大地测量学与测量工程]