Average daily sunspot number this week declined just 1.7 to 26.6, even though there were two days in the reporting week with no sunspots, July 18 and 19. The blank sun condition continued at least one more day on Thursday, July 20 which lands it on the first day of the next reporting week, July 20 to 26.
from Ham Radio Times http://ift.tt/2tnOjGY
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