Over the past reporting week (December 15-21) solar activity was little changed from the previous seven days, although on two days (December 16-17) there were no sunspots. Average daily sunspot numbers declined two points from 13 to 11, and average daily solar flux bumped up one point to 73.2.
Average planetary A index changed from 13.3 to 7.9, and average mid-latitude A index from 9 to 5.7.
Th...
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Average planetary A index changed from 13.3 to 7.9, and average mid-latitude A index from 9 to 5.7.
Th...
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