Solar activity was lower this week, November 9 – 15, 2023, with the average daily sunspot numbers dropping from 89.7 to 80.1, and the average daily solar flux from 151.7 to 133.8.
If those numbers seem a little low lately, we should check the bulletin from the same week last year. In the November 18, 2022, bulletin, the average daily sunspot number changed from 79.8 to 72.3, so a year later we are definitely trending higher.
Geomagnetic indicators were also lower, with the planetary A index changing from 22.3 to 10.4, and the middle latitude A index from 14.6 to 8.6.
A single new sunspot group appeared on November 10, another on November 12, one more on November 13, and another on November 14.
The predicted solar flux is 120, 118, 116, 120, and 122 on November 16 – 20; 125 on November 21 – 22; 135 on November 23 – 25; 140, 148, and 152 November 26 – 28; 155 on November 29 through December 1; 152, 150, 148, and 145 on December 2 – 5; 140 on December 6 – 8; 145, 135, 130, and 125 on December 9 – 12, and 120 on December 13 – 15.
The predicted planetary A index is 10 and 8 on November 16 – 17; 5 on November 18 – 19; 8 on November 20 – 21; 5, 12, 18, 20, and 12 on November 22 – 26; 8 on November 27 – 28; 5 on November 29 through December 3; 10, 16, 12, and 10 on December 4 – 7; 5 on December 8 – 9; 8 on December 10 – 13, and 5 on December 14 – 18.
Check
this site for an update of current conditions on various bands: https://dr2w.de/dx-propagation/
Sunspot numbers for
November 9 – 15, 2023, were 93, 93, 85, 78, 85, 86, and 41, with a mean of
80.1. The 10.7-centimeter flux was 138.7, 143.9, 141.5, 137.2, 132.7, 123.8,
and 118.9, with a mean of 133.8. Estimated planetary A indices were 12, 10, 5,
12, 16, 6, and 12, with a mean of 10.4. The middle latitude A index was 8, 7,
4, 10, 5, and 11, with a mean of 8.6.