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The K7RA Solar Update

Thread starter ARRL
Start date Mar 10, 2017

ARRL

Well-Known Member

Mar 10, 2017

Over four days last week, we saw a blank Sun, starting with March 4. On March 5, the sunspot number was 11 (indicating a single sunspot), then on March 6-8 the Sun was blank again. Thus, we saw an average daily sunspot number of just 14.1, a 20-point drop from the previous seven days.

Yesterday (Thursday) still no sunspots (our reporting week for calculating averages runs Thursday through Wednes...

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The K7RA Solar Update

ARRL

Well-Known Member

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