Plasma Convection in the Vicinity of the Geosynchronous Orbit

  • C. E. McIlwain
Part of the Astrophysics and Space Science Library book series (ASSL, volume 32)


An analytic function respresenting the quiet time magnetospheric electric field has been constructed with which it is possible to compute complete particle trajectories in a fraction of a second. The function was determined by a trial and error procedure such that it provides reasonable explanations for the characteristics of the plasma observed by the geosynchronous satellite ATS 5. It is believed that the model field is usefully accurate within the region of 5 to 7 Re on the dawn side of the magnetosphere and 5 to 10 Re on the dusk side. At a fixed distance of 6.7 Re, the model field peaks at a value of 1.2 mV m-1 near local midnight and is at a minimum of 0.04 mV m-1 near 19 LT.


Proton Spectrum Magnetic Equator Geosynchronous Orbit Plasma Convection Synchronous Orbit 
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Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1972

Authors and Affiliations

  • C. E. McIlwain
    • 1
  1. 1.University of CaliforniaSan Diego La JollaUSA

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