Method for function determination of GEO spin stabilized objects by ground-based photometric data
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摘要:
地球静止轨道（GEO）自旋稳定目标的自旋周期和其地基光度数据周期及其自身的功能属性均具有较强关联性，以目标自旋周期为桥梁，可以基于地基光度数据实现GEO自旋稳定目标的功能判定。对截至2022年5月1日全球仍在轨运行的GEO自旋稳定目标进行目标自旋周期和功能关联分析，在综合考虑目标光度数据不同特点的基础上提出光度数据反演目标自旋周期的方法。结合目标自旋周期和其功能的关联性，进一步提出光度数据判定目标功能的方法，该方法可以有效提高地基光度数据的应用效益，有望为太空目标能力评估等空间应用提供新思路。
Abstract:The spin period of geosynchronous earth orbit (GEO) spin stabilized objects has a strong correlation with its ground-based photometric data period and functional attributes. With the spin period of the object as a bridge, the function determination of a GEO spin stabilized object can be realized by ground-based photometric data. The spin period and function correlation of the GEO spin stabilized objects that are still in orbit as of May 1, 2022 were analyzed. Based on different characteristics of their photometric data, the photometric data inversion method of the object’s spin period was proposed. By combining the correlation between spin period and its function, the function determination of the object by photometric data was further proposed, which could effectively improve the application benefit of ground-based photometric data and provide new ideas for space applications such as space object capability evaluation.
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图 8 地基光度数据判定GEO自旋稳定目标功能方法
Figure 8. Function determination of GEO spin stabilized object by ground-based photometric data
图 9 2017年7月19日，目标Cosmos 2362的光度数据
Figure 9. Photometric data of Cosmos 2362 on July 19, 2017
图 10 Cosmos 2362光度数据的最小二乘频谱分析
Figure 10. Least-squares spectrum analysis of Cosmos 2362 photometric data
图 11 Cosmos 2362光度数据的相位分散最小化
Figure 11. Phase dispersion minimization of Cosmos 2362 photometric data
表 1 在轨运行GEO自旋稳定目标
Table 1. GEO spin stabilized objects in orbit
目标编号 目标名称 功能 转速/（r·min−1） 2000-024A DSP 20 预警 6 2001-033A DSP 21 预警 6 2004-004A DSP 22 预警 6 2000-081A Astra 2D 通信 50 2002-015B Astra 3A 通信 50 2000-046A Brazilsat B4 通信 50 2003-043A Eutelsat 33A 通信 50 2002-040B Meteosat 8 气象 100 2005-049B Meteosat 9 气象 100 2012-035B Meteosat 10 气象 100 2015-034B Meteosat 11 气象 100 2012-002A Fengyun 2F 气象 100 2014-090A Fengyun 2G 气象 100 2018-050A Fengyun 2H 气象 100 
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