The K7RA Solar Update

Discussion in 'ARRL News Feeds' started by American Radio Relay, Sep 7, 2018.

  1. Sunspots disappeared again, since August 28. Average daily sunspot number dropped from 17.7 (during the prior week) to 0, (naturally).

    Average daily solar flux declined from 70.6 to 67.8. Geomagnetic indicators quieted, with average daily planetary A index changing from 19.9 to 6.3, and mid-latitude A index going from 13.4 to 5.9.

    Predicted solar flux is 68 on September 7-14, 75 on September 15-1...

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