//The K7RA Solar Update

The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: Solar activity declined last week, and on Sunday, October 17, there were no sunspots at all. Most days had the minimum non-zero sunspot number, which is 11, indicating a single sunspot group containing a single sunspot.

Average daily sunspot number declined from 23.7 to 11.3, and average daily solar flux dropped 7 points from 85.6 to 78.6.

Geomagnetic indicators …

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