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The Influence of Geomagnetic Storm of 7-8 September 2017 on the Swarm Precise Orbit Determination
Zhang, Keke; Li, Xingxing; Xiong, Chao; Meng, Xiangguang; Li, Xin; Yuan, Yongqiang; Zhang, Xiaohong
Department空间环境部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2019
Volume124Issue:8Pages:6971-6984
DOI10.1029/2018JA026316
ISSN2169-9380
Language英语
KeywordSwarm LEO precise orbit determination geomagnetic storm thermospheric density high-order ionospheric effects
AbstractWe analyze a recent geomagnetic storm event on 7-8 September 2017 to investigate the impact of geomagnetic storm on the precise orbit determination (POD) of Swarm constellation. The storm time performance of POD is analyzed. The quality of Swarm orbits are severely degraded during the storm main phase on 8 September and the maximum precision degradation reached over 10 cm. The enhanced thermospheric mass density at Swarm altitude during the storm enlarges the atmosphere drag for low Earth orbit satellites, which makes main contributions to the storm time degradation of Swarm orbit. This negative effect of enhanced atmosphere drag on the orbit estimation is mostly suppressed by estimating a more frequent atmosphere drag parameter. The higher-order ionospheric effects on the POD of Swarm are also analyzed. The vertical total electron content derived from the Swarm onboard Global Positioning System receiver presents a larger enhancement on the dayside at low latitude and midlatitude during the storm main phase. This leads to an increase in the high-order ionospheric effects, especially in the second-order terms. No evident precision improvement is observed after correcting the high-order ionospheric effects. The results demonstrate that during this geomagnetic storm, the enhanced thermospheric neutral density serves as a stronger error source than the enhanced ionospheric plasma density for the low Earth orbit satellite orbit determination processing.
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7196
Collection空间环境部
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GB/T 7714
Zhang, Keke,Li, Xingxing,Xiong, Chao,et al. The Influence of Geomagnetic Storm of 7-8 September 2017 on the Swarm Precise Orbit Determination[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019,124(8):6971-6984.
APA Zhang, Keke.,Li, Xingxing.,Xiong, Chao.,Meng, Xiangguang.,Li, Xin.,...&Zhang, Xiaohong.(2019).The Influence of Geomagnetic Storm of 7-8 September 2017 on the Swarm Precise Orbit Determination.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,124(8),6971-6984.
MLA Zhang, Keke,et al."The Influence of Geomagnetic Storm of 7-8 September 2017 on the Swarm Precise Orbit Determination".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 124.8(2019):6971-6984.
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