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  • latest061412

    06/15/2012 | The K7RA Solar Update

    Solar activity was lower this week, although for the past few days, both the sunspot numbers and solar flux were rising. The average daily sunspot numbers declined more than 14.3 points to 116.1, while the average daily solar flux was off by 14.5 points t
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  • latest053112

    06/01/2012 | The K7RA Solar Update

    The average daily sunspot numbers sank more than 28 points this week (nearly 26 percent) to 81.9, while the average daily solar flux declined more than 16 points to 111.6. This is for the seven days of May 24-30, and is compared to the previous seven days
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  • latest052512.jpg

    05/25/2012 | The K7RA Solar Update

    The average daily sunspot numbers declined seven points over the past week to 110.3, while the average daily solar flux dropped 3.3 points to 131. Sunspot numbers for May 17-23 were 114, 118, 110, 124, 120, 95 and 91, with a mean of 110.3. The 10.7 cm flu
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  • latest051812

    05/18/2012 | The K7RA Solar Update

    The average daily sunspot numbers for the past week rose nearly 25 points, or about 27 percent, to 117.3. The big day was Monday, May 14 when the daily sunspot number jumped to 156. This was the day after four new sunspot groups, numbered 1481 through 148
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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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  • latest041212

    04/13/2012 | The K7RA Solar Update

    Solar activity took a serious nosedive this week, with the average daily sunspot numbers dropping to a value less than half the previous week’s average -- down nearly 43 points to 32.6. The solar flux values were also off, down nearly 12 points to 95.9. T
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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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