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The K7RA Solar Update

ARRL

Well-Known Member
Nov 15, 2008
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Sunspot activity dropped dramatically this week, with only two new
sunspot groups emerging, on October 14 and 16.

Compared to last week, the average daily sunspot number slipped from
144.1 to 89.4, and average daily solar flux from 159.1 to 145.1.

Average daily planetary A index changed from 7.6 to 6.4, and average
daily middle latitude A index from 8.3 to 5.

Predicted solar flux is 128 and 130 Octob...

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