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ARRL –
The Sun remained spotless over the past week, and by September 27 the period with no sunspots was over two weeks. Average daily solar flux declined from 68.6 to 67.9. Average planetary A index increased from 9.7 to 10.9, while average mid-latitude A index declined from 8.3 to 7.9.
Predicted solar flux is 68 on September 28 to October 2, 70 on October 3-10, 68 on October 11-28, 70 on October 29 t…
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