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  • Solar disk 11-20-14

    11/28/2014 | The K7RA Solar Update

    The K7RA Solar Update from Tad Cook, K7RA, in Seattle, Washington.
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  • Solar disk today

    08/30/2013 | The K7RA Solar Update

    The weekly propagation bulletin.
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  • Solar Flare

    08/16/2013 | The K7RA Solar Update

    Mostly quiet geomagnetic conditions
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  • latest041113

    04/12/2013 | The K7RA Solar Update

    Both the average daily sunspot numbers and the solar flux were up this week, with the sunspot numbers rising nearly 57 points to 138.1, and the average daily solar flux up more than 25 points to 138.8. Paired with the average daily planetary A index dropp
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  • latest012011.jpg

    01/21/2011 | The K7RA Solar Update

    The average daily sunspot numbers dropped from 50 (on the reporting week ending January 5) to 38 on January 6-12, and now 21.3 on January 13-19. Sunspot numbers for January 13-19 were 14, 11, 11, 15, 36, 34 and 28, with a mean of 21.3. The 10.7 cm flux wa
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