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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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03/25/2011 | 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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03/18/2011 | The K7RA Solar Update
The average daily sunspot numbers this week plummeted 45 points to 69, while the average daily solar flux was off over 26 points to 113.1. Sunspot numbers for March 10-16 were 88, 105, 78, 64, 51, 47 and 50, with a mean of 69. The 10.7 cm flux was 131.3,
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03/11/2011 | The K7RA Solar Update
Solar Cycle 24 continued its upward trend this week. The average daily sunspot number was more than double the value of the week before, rising from 50.9 to 114, while the average daily solar flux rose 44 percent, from 96.8 to 139.4. All this week through
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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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02/25/2011 | The K7RA Solar Update
The average solar flux was nearly unchanged this week, up just 0.3 point to 103.8, while the average daily sunspot number was down 4.9 points to 65. Sunspot groups 1161 and 1162 -- which brought so much activity last week -- have now rotated across our Su
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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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02/11/2011 | The K7RA Solar Update
Seven different sunspot groups were visible over the past week. The high sunspot number in the past seven days was 71 on Tuesday, and the average daily sunspot number more than doubled, rising more than 24 points to 44.3. The average daily solar flux was
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