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The K7RA Solar Update

Thread starter ARRL
Start date Jul 22, 2017

ARRL

Well-Known Member

Jul 22, 2017

Average daily sunspot number this week declined just 1.7 to26.6, even though there were two days in the reporting week with no sunspots,July 18-19. The blank Sun condition continued at least one more day onThursday, July 20 which lands it on the first day of the next reporting week,July 20-26.

Average daily solar flux was 85.9, down 1.1 from the previous week.

Average planetary A index rose 3.9 p...

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The K7RA Solar Update

ARRL

Well-Known Member

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