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  • 1
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    A comparison of precipitating electron energy flux on March 22, 1979 with an empirical model - CDAW 6 (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Data recorded by Defense Meteorological Satellite Program, Tiros and P-78-1 satellites for the CDAW 6 event on March 22, 1979, have been compared with a statistical model of precipitating electron fluxes. Comparisons have been made on both an orbit-by-orbit basis and on a global basis by sorting and binning the data by AE index, invariant latitude, and magnetic local time in a manner similar to which the model was generated. It is concluded that the model flux agrees with the data to within a factor of two, although small features and the exact locations of features are not consistently reproduced. In addition, the latitude of highest electron precipitation usually occurs about 3 deg more poleward in the model than in the data. This discrepancy is attributed to ring current inflation of the storm time magnetosphere.
    Keywords: SPACE RADIATION
    Type: AD-A153866 , Journal of Geophysical Research (ISSN 0148-0227); 90; 2727-273
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Observation of low energy protons in the geomagnetic tail at lunar distances (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Three suprathermal ion detectors stationed on the moon were used to detect a region of plasma flowing antisunward along the ordered field lines of the geomagnetic tail, exterior to the plasma sheet. The particle flow displays an integral flux, a bulk velocity, temperatures, and number densities uniquely different from the other particle regimes traversed by the moon. No consistent deviation in the field was found to correspond with the occurrence of the events, which have an angular distribution extending between 50 and 100 deg and a spatial distribution over a wide region in both the Y sub sm and Z sub sm directions. The duration of observable particles varies widely between tail passages, with an apparent correlation between the number of hours of observation and the Kp index averages over these times. It is proposed that these particles may have entered through the cusp region.
    Keywords: SPACE RADIATION
    Type: NASA-CR-141732
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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