The K7RA Solar Update

Discussion in 'ARRL News Feeds' started by American Radio Relay, Feb 8, 2019.

  1. Solar wind pushed geomagnetic indicators higher last week (on February 1-2), and average planetary A index rose from 7 (for the seven days ending January 30) to 11.6 on January 31 through February 6.

    When geomagnetic conditions are active, we usually see higher indices at high latitudes. Alaska’s college A index (measured at a magnetometer near Fairbanks) was 40 on February 1, indicating disturb...

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