Satellite Radio Beacon Study of the Ionospheric Variations at Hyderabad during the Total Solar Eclipse of Februrary 16, 1980

Abstract

Preliminary results of observations, made on the eclipse day (Feb. 16, 1980) at Hyderabad, on the amplitude and phase of 136 MHz transmissions of the geostationary satellite ETS-II are presented by the eclipse. The percentage decrease in Faraday rotation showed an excellent correlation with percentage increase in optical obscuration of the Sun with a time lag of about 12 minutes. No amplitude scintillations were observed on the night of the eclipse day, though there were strong scintillations on adjacent days.