NSSC OpenIR  > 空间环境部
Alternative TitleCausal Analysis Between Geosynchronous Satellite Anomalies and Space Environment
常峥; 王咏梅; 田天; 潘业欣
Source Publication宇航学报
Keyword卫星异常 内部充电 辐射剂量 单粒子效应 危险商数 Dictat模拟 最大电场
Other AbstractBased on the data from the FY and GOES satellites, 44 anomalies of one Chinese geosynchronous satellite related to space environment that occurred from 2010 to 2015 are studied, mainly focusing on the time profiles of the anomalies, the accompanying environment phenomena and the characteristics of the space particle environment during the anomalies. Furthermore, the maximum electric field amplitude inside the dialectic using DICTAT model is calculated. The results show that: (1) The internal charge might be the reason of the anomalies on March 17. (2) Most anomalies accrue at day time (up to 79.5% of the total anomalies). This is consistent with the local time distribution of the flux of the energetic electrons (>2MeV). (3) 25 of the 44 anomalies (57%) are accompanied by the energetic electron storm. The 50% quartile of the energetic electron (>2MeV) flux begins to increase significantly 3-4 days before the anomaly, and the hazard quotient of the internal charging Z_(IC) becomes yellow two days before the anomaly. The 75% quartile of the energetic electron (>2MeV) flux begins to increase significantly 4 days before the anomaly, and the hazard quotient of the internal charging Z_(IC) becomes red twice two days before the anomaly. (4) In categories II, III, and IV, the maximum electric field inside the dietetic simulated from DICTAT reaches and maintains larger than 10~6V.m~(-1) after 19.2, 50.4 and 9.8 hours, which has the potential hazard of the internal discharging. The internal charging caused by the energetic electrons could be the main reason of the 44 anomalies.
Indexed ByEI ; CSCD
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Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
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GB/T 7714
常峥,王咏梅,田天,等. 地球同步轨道卫星在轨异常与空间环境相关性分析[J]. 宇航学报,2017,38(4):435-442.
APA 常峥,王咏梅,田天,&潘业欣.(2017).地球同步轨道卫星在轨异常与空间环境相关性分析.宇航学报,38(4),435-442.
MLA 常峥,et al."地球同步轨道卫星在轨异常与空间环境相关性分析".宇航学报 38.4(2017):435-442.
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