The daily sunspot number rose dramatically this week on June 13 when it increased to 276, but two days later it was back below 100. The resulting weekly average for June 12-18 (141) was actually down 2.3 points from the previous seven days. Average daily solar flux was down 11.7 points to 134.7.
Predicted solar flux has weakened lately, and for the near term flux values are predicted at 105 on J…
American Radio Relay League | Ham Radio Association and Resources
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