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The K7RA Solar Update

ARRL

Well-Known Member
Nov 15, 2008
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Average daily sunspot number for the past week (December 1-7) was 40.9, up 10 points from the previous seven days at the end of November.

Average solar flux changed hardly at all, moving from 82.6 to 82.2.

Average daily planetary A index dropped from 13.6 to 4.9, and average mid-latitude A index from 10.3 to 3.4

The latest prediction from NOAA and the US Air Force shows solar flux at 75 on Decembe...

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