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The K7RA Solar Update

A

ARRL

Well-Known Member
Nov 15, 2008
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Average daily sunspot numbers for January 15-21 dropped 50.7 points relative to the previous seven days, to 61.9. Average daily solar flux declined from 151.3 to 126.2. For the past ten days sunspot numbers have remained below 100. This benchmark has no special significance, but the last time there were this many consecutive days with double-digit sunspot numbers was October 5-20, 2014.

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