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  • K7RA Solar Update

    06/07/2013 | The K7RA Solar Update

    The K7RA Solar Update
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  • Sunspot080610

    08/06/2010 | The K7RA Solar Update

    Sunspot numbers and solar flux declined this week, with the average daily sunspot numbers down more than 15 points to 20.3, and the average daily solar flux down nearly 4 points to 81.4. These are the numbers from last Thursday through this Wednesday, Jul
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  • sunspot012910

    01/29/2010 | The K7RA Solar Update

    Recent sunspot activity is increasing, and the numbers bear this out.
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  • 07/11/2008 | The K7RA Solar Update

    Another week and still no sunspots. The 3-month moving average for daily sunspot numbers that we began reporting toward the end of Solar Cycle 23 seemed to retrospectively suggest that solar minimum occurred last fall. The daily average for the 3-month pe
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  • 04/25/2008 | The K7RA Solar Update

    This week we had a couple of brief sunspot appearances -- 991 and 992 -- but they were both from Solar Cycle 23 and their emergence was fleeting. On Wednesday, April 23, the planetary A index rose to 32 due to a solar wind and south-pointing Interplanetar
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