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The K7RA Solar Update

A

ARRL

Well-Known Member
Nov 15, 2008
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Earth’s geomagnetic field has been quite active. On February 19 at 0234 UTC the Australian Space Forecast Centre issued this warning: “Increased geomagnetic activity expected for February 19.” Then on February 20 at 0439 UTC they issued an identical warning for February 20. This was the result of two coronal mass ejections in two days.

The planetary A index went to 47 on February 19, the result ...





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