Solar Report December 17, 2021

[Renae/k9do]

Predicted solar flux over the next month looks very good for this week, at 118 on December 17-21, 115 and 110 on December 22-23, 82 on
December 24-27, 80 on December 28, 78 on December 29, 2021 through January 3, 2022, then 80 on January 4-10, 82 on January 11, and 84
on January 12-17. The predicted flux values then drop below 80 after January 24.

Predicted planetary A index is 8 on December 17, 5 on December 18-19, then 8, 16, 12 and 8 on December 20-23, 5 on December 24-26,
then 15, 18 and 12 on December 27-29, 8 on December 30, 2021 through January 1, 2022, 5 on January 2-8, then 8 and 5 on January 9-10,
then 12, 10, 10, and 8 on January 11-14, 5 on January 15-22, then 15, 18 and 12 on January 23-25, and 8 on January 26-28.

Sunspot numbers for December 9 through 15, 2021 were 0, 0, 0, 12, 40, 40, and 79, with a mean of 24.4. 10.7 cm flux was 76.7, 75.7,
76.2, 79.9, 80.6, 88.9, and 102.5, with a mean of 82.9. Estimated planetary A indices were 3, 4, 5, 3, 6, 5, and 9, with a mean of 5.
Middle latitude A index was 2, 2, 3, 2, 6, 4, and 8, with a mean of 3.9.