//The K7RA Solar Update

The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: Sunspot numbers started strong at 124 this reporting week, September 9-15, but ended at zero. Average daily sunspot numbers went from 64.6 to 58.3. Average daily solar flux declined from 92.9 to 87.4.

Geomagnetic indicators remained moderate, with last week’s average daily planetary A index unchanged at 7, and average daily middle latitude A index changed from 7…

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