Accession Number:

AD0751467

Title:

Polar Cap Measurements of Solar-Flare Protons with Energies Down to 12.4 keV.

Descriptive Note:

Report for Oct 71-Apr 72,

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Report Date:

1972-10-01

Pagination or Media Count:

23.0

Abstract:

Solar protons with energies down to 12.4 keV were measured over the polar caps by instruments aboard the OV1-17 satellite. The observations were made following the 21 March 1969 solar-particle event. The polar-cap differential fluxes measured by OV1-17 and Injun-5 from 0.012 MeV to 1.1 MeV are well represented by a single power law. Over a 22 hour period the spectral index changed from 1.7 to 1.9. Temporal and spatial comparisons were made with data from the Explorer-35 and Injun-5 spacecraft. Good agreement is found at energies 300 keV where a comparison can be made. Author

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE