The K7RA Solar Update

With sunspot numbers up and solar flux decreasing, we saw ten new
sunspot groups this week; two on September 6, three on September 7,
two on September 8, one on September 9, and two on September 11.

Average daily sunspot numbers increased from 155.3 to 178.4, while
average daily solar flux declined from 230.3 to 223.7.

Geomagnetic indicators were quiet, with average daily planetary A
index dropping from 14 to 7.9 and middle latitude numbers from 12.7
to 11.7.

The solar flux forecast calls for 10.7 cm numbers at ... Читать дальше »