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The K7RA Solar Update

Thread starter ARRL
Start date Dec 26, 2014

ARRL

Well-Known Member

Dec 26, 2014

Solar activity was a mixed bag over the week of December 18-24, compared to the previous 7 days. Average daily sunspot numbers were down 12.5 points to 132.9, while average daily solar flux rose 22.9 points to 190.6.

Geomagnetic activity peaks occurred on December 22 and 24, with planetary A indices at 20 and 17, respectively. Three coronal mass ejections (CMEs) hit Earth on December 21-22.

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The K7RA Solar Update

ARRL

Well-Known Member

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