Statistical analysis of one Chinese sun-synchronous satellite anomalies

doi:10.1007/s11431-015-5917-x

CORC > 北京大学 > 地球与空间科学学院

	Statistical analysis of one Chinese sun-synchronous satellite anomalies
	Tian Tian ; Zong QiuGang ; Chang Zheng ; Wang YongFu ; Yang XiaoHua
刊名	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
	2016
关键词	SSO-X failure superposed epoch analysis Monte Carlo method internal charging maximum electric field strength radiation belts RADIATION ENVIRONMENT SAC-C SPACECRAFT ORBIT
DOI	10.1007/s11431-015-5917-x
英文摘要	Based on the data from the Medium-Energy Proton and Electron Detector (MEPED) onboard NOAA-17, 141 anomalies of a Chinese Sun-Synchronous satellite (SSO-X) that occurred between 02/01/2010 and 09/31/2012 were studied statistically. About 26 out of the 52 anomalies that occurred outside the South Atlantic Anomaly (SAA) were accompanied by energetic electron storms. Superposed Epoch Analysis (SEA) was used to analyze the properties of the anomalies and the dynamics of the space environments during these 26 events. Then, a Monte Carlo method was utilized to simulate the electron deposition and the interactions of the injected electrons with an aluminum shield and polyethylene dielectric. The average, median, and 75th percentile values of the maximum electric field strength inside the dielectric were calculated. The results showed the following. (1) SSO-X anomalies are more likely to occur within the SAA, as 89 out of 141 anomalies (63%) occurred there. (2) Twenty-six of the anomalies that occurred outside the SAA during energetic electron storms were located near the outer boundaries of the outer radiation belts, and these were more frequent in the Southern Hemisphere than in the Northern Hemisphere. (3) Electron flux enhancements occurred around the failure time at all energy levels but were more profound in the lower energy channels. The maximum fluxes of electrons > 30 keV, > 100 keV, and > 300 keV were 10(6), 3.5x10(5), and 1.2x10(6) cm(-2) s(-1) sr(-1), respectively. (4) The average, median, and 75th percentile values of the maximum electric field strengths inside the dielectric for the aforementioned 26 events remained in the range from 10(6) to 10(7) V/m for long time periods, which suggests that the 'potential hazards' of internal discharges cause SSO-X anomalies. The above results can provide useful information for the design and protection of sun-synchronous spacecraft.; National Natural Science Foundation of China [41421003]; Major Project of Chinese National Programs for Fundamental Research and Development [2012CB825603]; SCI(E); EI; 中国科学引文数据库(CSCD); ARTICLE; qgzong@gmail.com; 4; 540-546; 59
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437504]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Tian Tian,Zong QiuGang,Chang Zheng,et al. Statistical analysis of one Chinese sun-synchronous satellite anomalies[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2016.
APA	Tian Tian,Zong QiuGang,Chang Zheng,Wang YongFu,&Yang XiaoHua.(2016).Statistical analysis of one Chinese sun-synchronous satellite anomalies.SCIENCE CHINA-TECHNOLOGICAL SCIENCES.
MLA	Tian Tian,et al."Statistical analysis of one Chinese sun-synchronous satellite anomalies".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2016).