Tad Cook, K7RA, Seattle, reports: We saw just one new sunspot group (AR2403) over the August 20-26 reporting week, but it was a big one, directly facing Earth on August 23. Average daily sunspot numbers rose 32.3 points to 69.7, while average daily solar flux increased 28.7 points to 119.7. Another new sunspot appeared on August 27, numbered 2405.
The average daily planetary A index dropped from...
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The average daily planetary A index dropped from...
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