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Study of the Enhancement Events of Relativistic Electron at the Geosynchronous Orbit

B. S. Xue

B. S. Xue. Study of the Enhancement Events of Relativistic Electron at the Geosynchronous Orbit[J]. 空间科学学报, 2005, 25(5): 383-386. doi: 10.11728/cjss2005.05.383
引用本文: B. S. Xue. Study of the Enhancement Events of Relativistic Electron at the Geosynchronous Orbit[J]. 空间科学学报, 2005, 25(5): 383-386. doi: 10.11728/cjss2005.05.383
B. S. Xue. Study of the Enhancement Events of Relativistic Electron at the Geosynchronous Orbit[J]. Journal of Space Science, 2005, 25(5): 383-386. doi: 10.11728/cjss2005.05.383
Citation: B. S. Xue. Study of the Enhancement Events of Relativistic Electron at the Geosynchronous Orbit[J]. Journal of Space Science, 2005, 25(5): 383-386. doi: 10.11728/cjss2005.05.383

Study of the Enhancement Events of Relativistic Electron at the Geosynchronous Orbit

doi: 10.11728/cjss2005.05.383

Study of the Enhancement Events of Relativistic Electron at the Geosynchronous Orbit

  • 摘要: The high flux of energetic electron on geostationary orbit can induce many kinds of malfunction of the satellite there, within which the bulk-charging is the most significant that several broadcast satellite failures were confirmed to be due to this effect. The electron flux on geostationary orbit varies in a large range even up to three orders accompanied the passage of interplanetary magnetic cloud and the following geomagnetic disturbances. Upon the investigation of electron flux enhancement events, two types of events were partitioned as recurrent events and random ones. Both of the two kinds of events relate to the interplanetary conditions such as solar wind parameters, IMF etc and their evolution characters as well. As for the recurrent events, we found that, (1) all of the events exhibits periodic recurrence about 27 days, (2) significant increase of electron flux relates to interplanetary index and characters of their distribution, (3) the electron flux also has relation to solar activity index. An artificial neural network was constructed to estimate the flux I day ahead. The random electron flux enhancement events are rare and present different distribution figures to the recurrent ones. The figure of the random events and the conditions of their occurrence is also discussed in this paper.

     

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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2005-09-15

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