-
09/21/2012 | The K7RA Solar Update
The average daily sunspot numbers dropped this week, from 83.1 to 56, while the average daily solar flux declined from 118.9 to 101.4. Sunspot numbers for September 13-19 were 44, 44, 53, 77, 51, 61 and 62, with a mean of 56.
Learn More -
12/10/2010 | The K7RA Solar Update
The average daily sunspot numbers for the week were up more than nine points to 35, and average solar flux rose more than six points to 87.3. These differences compare the dates of December 2-8 with the previous seven days. The average planetary A index d
Learn More
Search for Amateur Radio News
