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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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03/05/2011 | The K7RA Solar Update
Solar activity is rising again, but the average sunspot numbers and solar flux are down, compared with last week. This week, the average daily sunspot number declined more than 14 points to 50.9, and the average daily solar flux was off 7 points to 96.8.
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01/07/2011 | The K7RA Solar Update
The average daily sunspot numbers were up nearly 24 points this week to 50, while the average daily solar flux rose more than 9 points to 89.5. The lagging three month average of daily sunspot numbers was down 3.5 points from last month’s average of the p
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12/31/2010 | The K7RA Solar Update
There were no sunspots for a full week, December 18-24. Christmas Day saw a return to sunspot activity, so the last two of those spotless days were in the Thursday through Wednesday reporting period in this bulletin, December 23-29. The average daily suns
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12/03/2010 | The K7RA Solar Update
The average daily sunspot numbers for the week of November 25-December 1 increased only slightly from the previous seven days: 1.3 points to 25.9. Sunspot numbers for November 25-December 1 were 22, 23, 22, 34, 31, 24 and 25, with a mean of 25.9. The 10.7
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11/26/2010 | The K7RA Solar Update
The average daily solar flux declined this week more than 36 points compared to last week, to 24.6. Our reporting week -- which ran until November 24 -- showed the daily sunspot number declining from 40 to 11, but on November 25 the sunspot number rose to
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10/23/2010 | The K7RA Solar Update
The average sunspot numbers for the week were up nearly 44 points to 55.6, while the average solar flux readings remained unchanged, at 84.9. For a few days, solar flux values rose above 90, but currently the projection from USAF and NOAA for solar flux o
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10/01/2010 | The K7RA Solar Update
HF radio conditions were good over this past week, with the average daily sunspot numbers up more than 5 points to 45.3, and the average solar flux rising 1.5 points to 84.4. On Wednesday, September 29, the solar flux was 90.7; the last time flux values w
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