Both the average daily sunspot numbers and solar flux increased this week. Average daily sunspot numbers rose from 118.6 to 133.4, while average solar flux went from 143.2 to 161.2.
Geomagnetic indicators were more active. Average daily planetary A index went from 9.6 to 17.1, while average middle latitude A index rose from 9.6 to 14.4.
Predicted solar flux is 160 on May 25 – 26; 165 on May 27; 160 on May 28; 155 on May 29 – 30; 160 and 150 on May 31 and June 1; 155 on June 2 – 4; 160, 165, 160, 155, and 150 on June 5 – 9; 145 on June 10 – 11; 150 on June 12; 155 on June 13 – 14; 160 on June 15; 165 on June 16 – 17; 160, 155, and 150 on June 18 – 20; 155 on June 21 – 22, then 160, 165, and 160 on June 23 – 25.
Predicted planetary A index is 12, 15, 8, 5, and 8 on May 25 – 29; 5 on May 30 through June 1; 16, 8, 10, and 8 on June 2 – 5; 5 on June 6 – 15, then 12, 10, 5, 18, 22, 15, and 10 on June 16 – 22.
Check out a video of the beautiful auroras explained here:
Check out sunspot images at these links:
https://www.popsci.com/science/sun-images-powerful-solar-telescope/
Sunspot numbers for May 18
through 24, 2023, were 121, 155, 138, 140, 97, 130, and 153, with a mean of
133.4. 10.7-centimeter flux was 150.6, 164.6, 169.6, 163.4, 161.5, 154.9, and
164.1, with a mean of 161.2. Estimated planetary A indices were 3, 9, 35, 28,
21, 12, and 12, with a mean of 17.1. Middle latitude A index was 8, 10, 26, 19,
17, 11, and 10, with a mean of 14.4.