Superior Conjunction of Pioneer 6

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Science  31 Oct 1969:
Vol. 166, Issue 3905, pp. 598-601
DOI: 10.1126/science.166.3905.598


Spectrograms of the radio signals from Pioneer 6 were taken as the spacecraft was occulted by the sun. The spectral bandwidths increased slowly at first, then very rapidly at 1 degree from the sun. In addition, six solar "events" produced marked increases of bandwidth lasting for several hours. The received signal power seemed unaffected by the solar corona.

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