SB PROP @ ARL $ARLP004
ARLP004 Propagation de K7RA
ZCZC AP04
QST de W1AW
Propagation Forecast Bulletin 4 ARLP004
From Tad Cook, K7RA
Seattle, WA January 24, 2020
To all radio amateurs
SB PROP ARL ARLP004
ARLP004 Propagation de K7RA
No sunspots appeared over this reporting week (January 16-22) and on
January 22 Spaceweather.com reported currently the consecutive
period of spotless days is 11. But all recent sunspots have had
Solar Cycle 25 polarity.
Average daily solar flux reported in last week's bulletin was 72.5,
and this week it was 71.2.
Average daily planetary A index went from 5.6 to 4.1, and the middle
latitude A index changed from 3.7 to 3.
Predicted solar flux is 71 on January 24-31, 72 on February 1-5, 71
on February 6-20, 72 on February 21 to March 3, 71 on March 4, and
70 on Ma
...
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