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The K7RA Solar Update

A

ARRL

Well-Known Member
Nov 15, 2008
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Tad Cook, K7RA, in Seattle, reports: Sunspot activity continues, and this reporting week, the average daily sunspot number rose from 16.1 to 22.7, while average daily solar flux went from 73.5 to 75.7. The two sunspot groups that appeared on May 3 and May 6 are fading fast and rotating off the visible solar disc. Two geomagnetically active days occurred on May 11 and 14, when the planetary A in...

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