Analysis of Seasonal Glint Phenomenon of Two GEO Satellites
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摘要: 季节性闪光现象是地球同步轨道（GEO）卫星独特的一种现象，得益于太阳光照条件和卫星太阳能帆板的运动特点产生。利用两颗地球同步卫星秋分后的闪光现象，总结分析GEO卫星闪光的特点和闪光产生的原因，阐述卫星闪光的原理，并基于闪光现象的峰值特征分析卫星太阳帆板的offset，通过闪光前后的光度曲线比较，分析闪光前后的光度变化规律。最后分析了不同卫星的闪光强度，定量比较了不同卫星的闪光强度差异。分析结果可为目标的观测提供指导，同时为目标的特性分析提供参考。
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关键词:
- GEO卫星 /
- 季节性闪光 /
- 太阳能帆板offset /
- 闪光强度分析
Abstract: Seasonal glint, a unique phenomenon of GEO satellites, is caused by the special solar illumination condition and the motion characteristics of solar panels. The characteristics of glint is summarized based on the glints of two GEO satellites after the autumnal equinox. And the reason of glint is analyzed and the glint condition is displayed. Moreover, the solar panel offset of the two satellites is estimated from the peak feature of light curves. The light curve during glints is compared with that of before glints, and concludes the law of glints. Finally, glint intensity of different satellites is compared and quantified. The results can provide guidance for observation planning and reference for object characterization.
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Key words:
- GEO satellites /
- seasonal glints /
- solar panel offset /
- glint intensity analysis
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