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18/5/17

The K7RA Solar Update

The K7RA Solar Update

04/14/2017
Solar indicators, both sunspot numbers and solar flux, both dropped this week, in fact on April 8 there were no sunspots. Average daily sunspot numbers declined from 65.9 to 16.6, and average daily solar flux went from 96.5 to 73.8, compared to the previous seven days, .

Average daily planetary A index went from 15.6 to 10.6, and average daily mid-latitude A index declined from 13 to 9.3.

Predicted solar flux shows 75 on April 14-15, 85 on April 16-17, 80 on April 18, 95 on April 19-21, 92 on April 22-23, 90 on April 24-29, 80 on April 30, 78 on May 1-2, 72 on May 3-4, 75 on May 5-6, 72 on May 7-12, 75 and 85 on May 13-14, 88 on May 15-16, 95 on May 17-18, 92 on May 19-20, and 90 on May 21-26.

Predicted planetary A index is 8, 10 and 8 on April 14-16, 25 on April 17-18, 12 and 8 on April 19-20, 5 on April 21-22, then 55, 28, 20 and 22 on April 23-26, then 28, 15, 8 and 5 on April 27-30, then 20, 10, 8 and 10 on May 1-4, 15 on May 5-6, 12 on May 7, 8 on May 8-10, 5 on May 11-13, then 20, 18 and 10 on May 14-16, 5 on May 17-19, then 55, 28, 20, 22, 28, 15 and 8 on May 20-26.
http://www.arrl.org/news/the-k7ra-solar-update-473

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