The K7RA Solar Update

Discussion in 'ARRL News Feeds' started by American Radio Relay, Aug 9, 2019.

  1. A new sunspot group appeared only briefly this week, on August 7-8. It was sunspot 2747, from current Cycle 24. Sunspot numbers on Monday and Tuesday were 11 and 12.

    Average daily solar flux shifted only slightly from last week, from 67 to 67.2. Average planetary A index, a geomagnetic indicator aggregated from magnetometers around the world, more than doubled, from 5 to 10.3. This was due to so...

    Continue reading...
     

Share This Page