SB PROP @ ARL $ARLP027
ARLP027 Propagation de K7RA
ZCZC AP27
QST de W1AW
Propagation Forecast Bulletin 27 ARLP027
From Tad Cook, K7RA
Seattle, WA July 7, 2020
To all radio amateurs
SB PROP ARL ARLP027
ARLP027 Propagation de K7RA
No sunspots this week. The pattern persists, and this surprises me.
But Spaceweather.com reported a couple of weak, barely emerging
spots, never numbered, and by their magnetic polarity were from new
Solar Cycle 25.
We rely on NOAA for official sunspot numbers, and the most recent
one reported was 11 on June 15. See,
ftp://ftp.swpc.noaa.gov/pub/indices/DSD.txt
Average daily solar flux over the recent reporting week (June 25 to
July 1) averaged 68.6 up from 67.7 over the previous seven days.
Average daily planetary A index was 4.7
...
Читать дальше »