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The K7RA Solar Update

ARRL

Well-Known Member
Nov 15, 2008
10,596
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Compared to the last reporting week, this week (September 1-7) average daily sunspot numbers were down, solar flux increased, and geomagnetic indices were much more active.

Average daily sunspot number declined from 60.1 to 46.4, while average solar flux went from 87.9 to 95.1. Average planetary A index increased from 8 to 26.6, while average mid-latitude A index rose from 6.9 to 18.1.

The daily ...

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