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The K7RA Solar Update

Thread starter ARRL
Start date Sep 21, 2013

ARRL

Well-Known Member

Sep 21, 2013

Solar activity continues to be weak, although there was an uptick on September 18-19 when solar flux rose to 104.1, then 107.9. September 18 was the first day with solar flux above 100 since September 6. Average daily sunspot number for the reporting week (September 12-18) rose to 42.3, up from 37.7 for the previous seven days. The daily sunspot number on September 18-19 rose from 59 to 85.

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The K7RA Solar Update

ARRL

Well-Known Member

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