The K7RA Solar Update

Average daily sunspot number was 11.9 over the past reporting week (January 4-10, 2018) compared to zero (no sunspots) over the previous seven days. But average daily solar flux declined slightly, 70.4 to 69.9.

Average daily planetary A index went from 5.1 to 5.4, and average mid-latitude A index changed from 3.4 to 4.6.

Predicted solar flux is 70 on January 12-21, 72 on January 22-27, 70 on Janu…

Posted in ARRL News.