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The K7RA Solar Update

ARRL

Well-Known Member
Nov 15, 2008
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Solar indices pulled back this week, when average sunspot number was 25.3 for the May 19-25 period, down 38.8 points from the previous week’s average of 64.1.

Likewise, average daily solar flux over the same period was 97, down 3.4 points from the previous week’s average of 100.4.

Planetary A index average was 7.1, down 2.8 points from 9.9, and average daily mid-latitude A index was 7, down 3.9 p...

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