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  • latest042211

    04/23/2011 | The K7RA Solar Update

    Both the average daily sunspot numbers and solar flux were both higher for the week: Sunspot numbers up more than 3 points to 93.1 and the solar flux up by 8 points to 117.2. Geomagnetic activity was a bit lower -- with April 20 the most active day -- aft
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  • latest040711

    04/08/2011 | The K7RA Solar Update

    Our Sun is still quite active, but sunspot numbers are down this week, when compared with the week before. The average daily sunspot numbers were down nearly 34 points to 68.3, while the average daily solar flux declined nearly 3 points to 111.8. But geom
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  • latest033111.jpg

    04/01/2011 | The K7RA Solar Update

    The activity we could see recently on our Sun’s far side -- thanks to the STEREO mission -- has been rotating into view, producing some nice sunspot activity and the resulting improved upper-HF propagation. Compared to the previous week (March 17-23), the
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  • latest032411.jpg

    03/25/2011 | The K7RA Solar Update

    All solar indicators were lower again for the second consecutive week. The average daily sunspot numbers declined more than 28 points from the week before to 40.9, while the average daily solar flux was off more than 18 points to 94.8. But looking at sola
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  • latest021811

    02/18/2011 | The K7RA Solar Update

    A dramatic surge in solar activity is underway, with a level of sunspot numbers and solar flux not seen since 2005-2006. Tuesday’s sunspot number of 100 has not been equaled or exceeded since April 6, 2006 when it was 105. On Wednesday, the solar flux was
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  • latest020411.jpg

    02/04/2011 | The K7RA Solar Update

    The past week had one 0 sunspot day -- Thursday, January 27. Even though the activity came right back, the average daily sunspot number for the week fell more than 12 points to 20.1, and the average daily solar flux declined 2.7 points to 80.8. After the
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  • latest012811.jpg

    01/28/2011 | The K7RA Solar Update

    The average daily sunspot numbers rose over the past week (ending January 26) by 11.3 points to 32.6, compared to the previous week, while the average daily solar flux rose 3.1 points to 83.5. The planetary A index average was down 2 points to 2.9, and mi
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  • Sunspot090910

    09/10/2010 | The K7RA Solar Update

    The average daily sunspot numbers for the week rose nearly 13 points to 38.3, while the average daily solar flux was up more than four points at 78.4. On September 2, one new sunspot group emerged, numbered 1105, joining sunspot groups 1101, 1102 and 1103
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