We are more than halfway through the winter season, and today -- February 17 -- is 58 days after the winter solstice. Propagation should improve as we approach the vernal equinox on March 20, which is just 32 days from now. Solar activity is still in the temporary doldrums, with sunspot numbers below 100, but the weekly average of daily sunspot numbers rose this week by more than 15 points to 5...
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