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The K7RA Solar Update

A

ARRL

Well-Known Member
Nov 15, 2008
10,482
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58
Like last week, eight new sunspot groups emerged this reporting
week, September 7-13.

One appeared on September 7, another September 9, four more on
September 10, another on September 11 and one more on September 12.

Solar activity made a nice comeback, with average daily sunspot
numbers rising from 95.4 to 138.1, and solar flux from 137.6 to
159.9.

The most active geomagnetic day was September 12, wh...

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