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  • latest100412

    10/05/2012 | The K7RA Solar Update

    A coronal mass ejection (CME) hit the Earth on September 30, triggering a jump in geomagnetic indices. The planetary A index on October 1 was 31, and the K index jumped to 7, making aurora visible across the northern tier of the United States.
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  • latest092812.jpg

    09/28/2012 | The K7RA Solar Update

    The average daily sunspot numbers rose this week from 56 to 81.3, while the average daily solar flux increased from 101.4 to 129.7.
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  • latest092012

    09/21/2012 | The K7RA Solar Update

    The average daily sunspot numbers dropped this week, from 83.1 to 56, while the average daily solar flux declined from 118.9 to 101.4. Sunspot numbers for September 13-19 were 44, 44, 53, 77, 51, 61 and 62, with a mean of 56.
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  • latest082412.jpg

    08/24/2012 | The K7RA Solar Update

    Weak solar activity continues: The average daily sunspot numbers for the seven days of August 16-22 were down 23 points -- 30 percent -- to 54.6, while the average daily solar flux dropped a little over 16 percent -- 18.7 points -- to 96.
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  • latest081612

    08/17/2012 | The K7RA Solar Update

    There was a big drop in solar activity over the past week, with the average daily sunspot numbers declining nearly 42 points to 77.6, and the average daily solar flux down 20 points to 114.7.
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  • latest081012

    08/10/2012 | The K7RA Solar Update

    The average daily sunspot numbers rose more than 20 points this week -- about 20 percent -- to 119.4, while the average daily solar flux was up 3 points to 134.7. Sunspot numbers for August 2-8 were 126, 160, 140, 107, 108, 96 and 99, with a mean of 119.4
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  • latest080312

    08/03/2012 | The K7RA Solar Update

    The average daily sunspot numbers this week were up more than 47 points to 99.3, while the average daily solar flux rose nearly 35 points to 131.7.
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  • latest072612

    07/27/2012 | The K7RA Solar Update

    There are new sunspot groups coming over our Sun’s eastern horizon, but this week has been a quiet one, both in terms of sunspot and geomagnetic activity. The average daily sunspot numbers declined by 50 percent -- from 104.7 to 52.1 -- while the average
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