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The K7RA Solar Update

A

ARRL

Well-Known Member
Nov 15, 2008
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No sunspots were seen over the past reporting week, April 5-11, so average daily sunspot number declined from 3.3 to 0. Average daily solar flux declined from 68.6 to 67.7. Average daily planetary A index increased from 5 to 9.4, and average daily mid-latitude A index went from 4 to 8.1.

But on Thursday, April 12, a new sunspot appeared, AR2704, and it is a small one. However, this one is three ...

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