The K7RA Solar Update – 10/26/2018
We saw no sunspots during the reporting week, October 18-24, so average daily sunspot number dropped from 12.6 to zero. The dearth of sunspots continued Thursday, October 25.
Average daily solar flux declined from 71 to 70.4. Geomagnetic indicators were quieter, with average daily planetary A index declining from 7.4 to 3.3, and average daily middle latitude A index dropping from 7.3 to 2.1.
Predicted solar flux is 68 on October 25 to November 5, 70 on November 6-18, 69 on November 19-20, 68 on November 21 to December 2, and 70 on December 3-9.
Predicted planetary A index is 5 on October 26-28, 8 on October
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Суббота, 21.12.2024, 18:22
SB PROP @ ARL $ARLP043
ARLP043 Propagation de K7RA
ZCZC AP43
QST de W1AW
Propagation Forecast Bulletin 43 ARLP043
From Tad Cook, K7RA
Seattle, WA October 26, 2018
To all radio amateurs
SB PROP ARL ARLP043
ARLP043 Propagation de K7RA
We saw no sunspots during the reporting week, October 18-24, so
average daily sunspot number dropped from 12.6 to 0. The dearth of
sunspots continued on Thursday, October 25.
Average daily solar flux declined from 71 to 70.4. Geomagnetic
indicators were quieter, with average daily planetary A index
declining from 7.4 to 3.3, and average daily middle latitude A index
dropping from 7.3 to 2.1.
Predicted solar flux is 68 on October 25 to November 5, 70 on
November 6-18, 69 on November 19-20, 68 on November 21 to December
2, and 70 on December 3-9.
Predicted planetary A index is 5 on October 26-28, 8 on October
29-30, 5 on October 31 throu
