The K7RA Solar Update (Apr 13, 2007)

So far this month we’ve observed nine days in a row with zero sunspots, and all of our reporting week — April 5 through 11 — falls within this string of inactive solar days. As noted last week, comparing that week’s average sunspot number (12.9) to this week’s (0) doesn’t mean much when activity is so low at the bottom of this sunspot cycle. Based on predicted smoothed sunspot numbers, if this month and the next are truly the solar minimum, we should probably see several weeks in a row with no sunspots. This should cheer those hoping for more activity and a return to worldwide propagation on 10 and 15, because recent observation shows the rise of any solar cycle is more rapid than its decline and, most important, the decline of the previous cycle.

http://www.arrl.org/news/stories/2007/04/13/100/?nc=1

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