摘要
天琴计划预计将在地球10万km高度附近处的圆轨道上部署三颗无拖曳控制卫星,组成近似等边三角形星座,并利用高精度星间激光干涉链路来探测宇宙空间中mHz频段的低频引力波信号。采用地球高轨是天琴计划的显著特征,如何行之有效地设计和利用地球轨道是天琴方案面临的重要问题。本文将从星座构型稳定性优化、轨道面与轨道半径选取、地月系引力场干扰效应评估、阴影规避这四个方面介绍天琴轨道与星座设计的主要研究进展。
The TianQin project plans to deploy three drag-free controlled satellites in circular high Earth orbits at an altitude of 105 km.The satellites form a nearly equilateral-triangle constellation,and exchange high-precision laser interferometric links to detect low-frequency gravitational waves in the mHz frequency band.TianQin features a geocentric concept,and is facing the challenge of designing and utilizing high Earth orbits to the best effect.In this paper,we briefly summarize the main progresses on TianQin’s orbit and constellation design,including constellation stability optimization,orbital orientation and radius selection,the Earth-Moon’s gravity disturbance evaluation,and eclipse avoidance.
作者
张雪峰
叶伯兵
檀庄斌
袁慧敏
罗成健
焦磊
谷德峰
丁延卫
梅健伟
ZHANG Xuefeng;YE Bobing;TAN Zhuangbin;YUAN Huimin;LUO Chengjian;JIAO Lei;GU Defeng;DING Yanwei;MEI Jianwei(MOE Key Laboratory of TianQin Mission,TianQin Research Center for Gravitational Physics&School of Physics and Astronomy,Frontiers Science Center for TianQin,CNSA Research Center for Gravita-tional Waves,Sun Yat-sen University(Zhuhai Campus),Zhuhai 519082,China;School of Aeronautics and Astronautics,Sun Yat-sen University(Shenzhen Campus),Shenzhen 518000,China)
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2021年第1期123-128,共6页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广东省基础与应用基础重大项目(2019B030302001)
国家自然科学基金(11805287)。
关键词
空间引力波探测
天琴计划
轨道设计
星座构型
空间环境效应
space-based gravitational wave detection
TianQin project
orbit design
constellation configuration
space environmental effect
