航天器工程2025，Vol.34Issue(5)：73-80,8.DOI:10.3969/j.issn.1673-8748.2025.05.010
应用卫星在轨数据的OSR太阳吸收比退化规律分析
Analysis of Degradation Law of OSR Solar Absorptance Using On-orbit Data of Satellites
金迪 1毛俊俊 1杨宇翔2
作者信息
- 1. 北京空间飞行器总体设计部 航天器热控全国重点实验室,北京 100094
- 2. 北京卫星环境工程研究所,北京 100094
- 折叠
摘要
Abstract
Addressing the issue of the lack of research on the on-orbit degradation law of the opti-cal solar reflectors(OSR)solar absorptance with long-period and large-sample data in China,a research method is proposed using on-orbit data of satellites,which utilizes thermal simulation analysis to invert the OSR solar absorptance.Taking the rubidium clock radiator of the Beidou-2 geostationary orbit(GEO)satellites as the research object,the performance degradation of the OSR thermal coatings under space environmental effects is evaluated,and the assessment results is fitted and extrapolated to obtain the first-order exponential decay law for the solar absorptance of the GEO satellite OSR.The research is based on China's self-developed Beidou-2 GEO satel-lites,and the research method can be used as a reference for OSR performance degradation as-sessment of GEO satellite with similar conditions.The degradation results and laws can be used as a reference for GEO satellite thermal design.关键词
北斗二号地球静止轨道卫星/玻璃型二次表面镜/太阳吸收比/退化规律Key words
Beidou-2 GEO satellite/OSR/solar absorptance/degradation law引用本文复制引用
金迪,毛俊俊,杨宇翔..应用卫星在轨数据的OSR太阳吸收比退化规律分析[J].航天器工程,2025,34(5):73-80,8.
