SB PROP @ ARL $ARLP010
ARLP010 Propagation de K7RA
ZCZC AP10
QST de W1AW
Propagation Forecast Bulletin 10 ARLP010
From Tad Cook, K7RA
Seattle, WA March 5, 2021
To all radio amateurs
SB PROP ARL ARLP010
ARLP010 Propagation de K7RA
We saw one day (Monday) with no sunspots during this week, so
average daily sunspot numbers declined slightly from 19.6 to 18.9.
Two new sunspot groups (2806 and 2807) appeared on the following
day.
Average daily solar flux remained about the same, increasing
slightly during the reporting week (February 25 through March 3)
from 75.7 to 76.7.
Average daily planetary A index softened slightly from 16 to 14.7,
and the middle latitude average went from 12.4 to 10.4. Geomagnetic
indicators remained somewhat active due to persistent solar wind.
The most active day was Monday, when Alaska'
...
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