The K7RA Solar Update

Discussion in 'ARRL News Feeds' started by American Radio Relay, Oct 4, 2019.

  1. A new sunspot from old Cycle 24 appeared on Tuesday and Wednesday of this week, then by Thursday was gone.

    The sunspot number was 11 on both days, the minimum non-zero sunspot number.

    Average daily solar flux rose only slightly from 67.3 to 67.6. Geomagnetic indices were higher. Average planetary A index rose from 5.4 to 14.4, and average mid-latitude A index increased from 4.6 to 11.

    Predicted so...

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