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The K7RA Solar Update

A

ARRL

Well-Known Member
Nov 15, 2008
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Average daily sunspot number rose from 22.6 to 52.7 (from zero two weeks ago) and solar flux from 77.1 to 83.9, for the January 19-25 reporting week.

In addition to this recent uptick, the first sunspot group of Cycle 25 (12620) appeared on December 18. Carl Luetzelschwab, K9LA, has an excellent article about this in the next (February) issue of the Northwest Indiana DX Club newsletter (see http...

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