venerdì 20 febbraio 2015

The K7RA Solar Update 20/02


Average daily solar flux and sunspot numbers were down for the second week in a row. Average daily sunspot numbers for January 29 to February 4 were 139, then down to 81.6 the next seven days, and now 54.6 during the February 12-18 (latest) reporting period. The three averages for daily solar flux over the same periods were 151.1, 144.1 and 121.4.

The latest prediction for solar flux is 120 on February 20-21, 125 on February 22-24, 130 on February 25-28, 125 on March 1-5, 120 on March 6, 115 on March 7-14, 125 on March 15 and 130 on March 16-18. Solar flux then rises to 135 on March 23-25...