The numbers looked better during this reporting week, October 5 – 11, 2023.
The average daily sunspot numbers rose from 128.6 to 144.1, and the average solar flux rose from 155.6 to 159.1.
The average daily planetary A index decreased from 9.1 to 7.6, as did the average middle latitude A index from 8.9 to 8.3.
For some reason, the middle latitude numbers were not available from Fredericksburg, Virginia, so we used the data from Boulder, Colorado.
Nine new sunspot groups emerged this week, with two on October 5, one on October 7, two on October 8, one on October 9, one on October 10, and two on October 11.
HF conditions have been excellent, as the season turns deeper into fall in the Northern Hemisphere. I really noticed a difference on 10, 12, and 15 meters.
The predicted solar flux is 158 and 156 on October 12 – 13; 155 on October 14 – 16; 152 on October 17 – 18; 148 on October 19 – 20; 150, 152, 154, 154, and 158 on October 21 – 25; 160 on October 26 – 28; 158 on October 29 – 30; 156 on October 31 through November 1; 155, 156, 156, 158, and 160 on November 2 – 6; 158 on November 7 – 8, and 156 on November 9 – 10.
The predicted planetary A index is 12 on October 12 – 13; 10, 8, 5, 12, and 10 on October 14 – 18; 5 on October 19 – 30; 15 and 12 on October 31 through November 1; 5 on November 2 – 5; 10, 8, and 10 on November 6 – 8; 15 on November 9 – 10, and 8 on November 11.
Check out these links:
The 15,000-year history of extreme solar events:
Commercial space companies approach their first solar maximum:
Korean records from the 14th to 19th century reveal sunspot cycle history:
Safely watch the eclipse with a disco ball (I don’t actually know if this is safe):
Ring of fire solar eclipse:
Solar polarity flip:
https://bit.ly/3LWZ7WF
Sunspot numbers for October
5 – 11, 2023, were 179, 138, 145, 149, 129, 120, and 149, with a mean of 144.1.
The 10.7-centimeter flux was 156.1, 155.3, 157.2, 157.1, 165.5, 164.4, and 158,
with a mean of 159.1. Estimated planetary A indices were 16, 9, 5, 7, 8, 4, and
4, with a mean of 7.6. The middle latitude A index was 17, 8, 4, 10, 9, 6, and
4, with a mean of 8.3.