Solar activity strengthened recently, with average daily sunspot numbers for the seven days ending June 25 at 72.3, rising 43.3 points to 115.6 for the seven days ending July 2, then rising 89.5 to an average of 205.1 for the period ending July 9.
Similarly, average daily solar flux for the seven days ending on June 25 was 98.8, which rose 30.7 points to 129.5 on July 2, and then rose 64.4 point...
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Similarly, average daily solar flux for the seven days ending on June 25 was 98.8, which rose 30.7 points to 129.5 on July 2, and then rose 64.4 point...
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