Two new sunspot groups appeared on August 3, three more on August 7, and another on August 9.
But solar activity was lower over our reporting week, August 3-9, with average daily sunspot number dropping from 154.3 to 108.9 and average solar flux from 173 to 166.4.
Average daily planetary A index rose from 8.3 to 12.3 and average middle latitude A index from 9.3 to 10.1.
The middle latitude A in…
Read more – via American Radio Relay League | Ham Radio Association and Resources http://www.arrl.org/news/view/the-k7ra-solar-update-790