Accession Number:

AD0673878

Title:

OBSERVATIONS OF ENERGETIC ELECTRONS AT SYNCHRONOUS ALTITUDE. VOLUME I. GENERAL FEATURES AND DIURNAL VARIATIONS,

Descriptive Note:

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Report Date:

1968-05-01

Pagination or Media Count:

40.0

Abstract:

Energetic electron fluxes above four integral thresholds E sub e greater than 300 keV, greater than 450 keV, 1.05 MeV, and 1.9 MeV were measured at synchronous altitude R 6.6 R sub e during the first half of 1967 on board the ATS-1 satellite 1966-110A. The fluxes show a diurnal variation, with the noon-to-midnight ratio being larger for the more energetic electron groups and being larger, on the average, for magnetically disturbed days. Magnetic storms produce a great deal of fine structure in the electron fluxes, with changes occurring on the time scale of minutes the effect of such storms is to depress the fluxes. Recovery to pre-storm levels is an energy-dependent process which proceeds more slowly for more energetic electrons and apparently in a stepwise manner. Author

Subject Categories:

  • Atmospheric Physics
  • Geomagnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE