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The K7RA Solar Update

A

ARRL

Well-Known Member
Nov 15, 2008
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Solar activity suddenly weakened during this bulletin’s reporting period, January 9-15, and the lower activity and expectations continue. Average daily sunspot numbers declined from 188.1 to 111.4, and average daily solar flux went from 201.6 to 155.4. Those drops compare the January 9-15 period to the January 2-8 week. Daily sunspot numbers dipped below 100, to 95, 87 and 77 on January 14-16.

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