SB PROP @ ARL $ARLP002
ARLP002 Propagation de K7RA
ZCZC AP02
QST de W1AW
Propagation Forecast Bulletin 2 ARLP002
From Tad Cook, K7RA
Seattle, WA January 12, 2018
To all radio amateurs
SB PROP ARL ARLP002
ARLP002 Propagation de K7RA
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 January 28 to February 17, 72 on February 18-23, and 70 on
February 24-25.
Predicted planetary A index is 5 on January 12, then 15, 12 and 8 on
January 13-15, 5 on January 16-19, then 12, 10, 8 and 6 on January
20-23, 5 on January 24-27, 10 on Ja
...
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