The K7RA Solar Update

10/20/2017

The past reporting week (October 12-18) saw very little solar activity, with a sunspot number of 12 on October 15, meaning the average daily sunspot number was only 1.7, down from the already low average of 8.4 over the previous seven days.

Over the same two periods, average daily solar flux declined […]

The K7RA Solar Update

08/04/2017

At 0549 UTC on August 3 the Australian Space Forecast Centre issued this warning:

“During UT days 4-5 August expect an increase in geomagnetic activity up to active to minor storm levels due to influence of the recurrent coronal hole.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED DUE TO CORONAL HOLE HIGH SPEED WIND STREAM FROM […]