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  • latest042612

    04/27/2012 | The K7RA Solar Update

    Solar activity revived over the past week, with a big increase in sunspot numbers. On Friday, April 20, the daily sunspot number reached 162; four days later on April 24, the number reached 169. This level of activity has not been seen since last fall, wh
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  • latest041912

    04/20/2012 | The K7RA Solar Update

    Both the solar flux and sunspot numbers reached a short term low on April 8-11, but they are now rising again. For the past week -- April 12-18 -- the average daily sunspot numbers more than doubled, compared to the previous seven days, rising more than 3
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  • latest040512

    04/05/2012 | The K7RA Solar Update

    Over the past week, the average daily sunspot number and solar flux values rose slightly, even though as the week progressed, each day had a lower number than the day before. The daily sunspot number began the week at a high of 100, but ended at 60. Likew
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  • latest033012.jpg

    03/30/2012 | The K7RA Solar Update

    Eight new sunspot groups appeared this week, but the average daily sunspot number declined four points to 71.1; the average daily solar flux rose by less than two points to 103.7. Sunspot numbers for March 22-28 were 86, 74, 65, 84, 56, 63 and 70, with a
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  • latest032312.jpg

    03/23/2012 | The K7RA Solar Update

    Solar activity declined this week: The average daily sunspot numbers were off by more than 13 points to 75.1, while the average daily solar flux dropped over 32 points to 102.1. The solar flux dropped barely below 100, but rounded up to 100 as shown on th
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  • latest031512

    03/16/2012 | The K7RA Solar Update

    The average daily sunspot numbers over the past reporting week (March 8-14) were 88.3, a rise of nearly 19 points; the average daily solar flux rose more than 12 points to 134.2. Sunspot numbers for March 8-14 were 86, 96, 89, 103, 89, 80 and 75, with a m
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  • latest030812

    03/09/2012 | The K7RA Solar Update

    This has been quite a week for dramatic solar activity. The average daily sunspot number was up nearly 26 points to 69.4, while the average daily solar flux rose nearly 17 points to 121.9 for the period March 1-7. Sunspot numbers for March 1-7 were 24, 24
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  • latest022412

    02/24/2012 | The K7RA Solar Update

    We don’t know if this is a significant trend, but solar activity has really leveled off recently. But not everyone is unhappy about this. During the recent long minimum, 160 and 80 meter operators sang the praises of great conditions. In response to my “w
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