Physics
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977scct.conf..191g&link_type=abstract
In NASA. Lewis Res. Center Proc. of the Spacecraft Charging Technol. Conf. p 191-201 (SEE N78-10129 01-12)
Physics
Ats 6, Eclipses, Penumbras, Potential, Atmospheric Attenuation, Explorer 40 Satellite, Flux (Rate), Photoelectrons, Solar Radiation
Scientific paper
Two days of data from the ATS-6 1976 eclipse season were analyzed to determine the effects of varying photoelectron flux on spacecraft potential. Particular emphasis was placed on the variation in potential as the satellite entered the earth's penumbra. Measurements from the AE-C satellite of the solar UV radiation were used to construct a model of atmospheric attenuation. This model was found to be consistent with direct measurements of the variations in photoelectron flux as Injun 5 passed into eclipse. Applying the model to the ATS-6 data gave the time dependency of the solar illumination/photoelectron flux as the satellite was eclipsed. This relationship, when combined with the ATS-6 measurements of satellite potential, revealed a nearly linear relation between the solar illumination/photoelectron flux and the logarithm of the satellite potential.
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