The K7RA Solar Update

Discussion in 'ARRL News Feeds' started by American Radio Relay, Jan 12, 2018 at 11:47 AM.

  1. Average daily sunspot number was 11.9 over the past reporting week (January 4-10, 2018) compared to zero (no sunspots) over the previous seven days. But average daily solar flux declined slightly, 70.4 to 69.9.

    Average daily planetary A index went from 5.1 to 5.4, and average mid-latitude A index changed from 3.4 to 4.6.

    Predicted solar flux is 70 on January 12-21, 72 on January 22-27, 70 on Janu...

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