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The results of analysis of the quiet day solar daily magnetic variations (Sq) are given in the form 1: Cn sin(nt+.pn), for n = 1,2,3,4, of all magnetic elements as recorded at oolangi Observatory, Victoria, during the years 1949--1958, as well as the times of ccurrence of extrema and the percentage contributions of each harmonic to each extrema.

Quiet Day Solar Daily Magnetic Variations at Toolangi, Victoria