Posts tagged K7RA

The K7RA Solar Update

Sunspot excitement continues, as we continue to see daily images of our Sun peppered with spots. The average daily sunspot numbers for the week were about the same as the previous week, increasing from 96.1 to 96.7, while the average daily solar flux dropped from 155.5 to 132.6.

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The K7RA Solar Update

(ARRL) The average daily sunspot numbers this week were up 57 percent over the previous seven days, rising from 41.6 to 65.6, while the average daily solar flux rose just 3 points to 89.1. There seem to be plenty of sunspots of late, but none have been large, and so the sunspot number and solar flux are not as high as in some previous months. A new sunspot appeared on July 7, then three more the next day on July 8, and then a new one each day on July 9, 10 and 11, and two more on July 13, with another two on July 14. A coronal mass ejection on July 9 gave us some geomagnetic activity a couple of days later. Sunspot numbers for July 7-13 were 42, 65, 55, 67, 72, 62 and 96, with a mean of 65.6. The 10.7 cm flux was 85.5, 85.8, 85.6, 90.7, 90.1, 91.7 and 94.6, with a mean of 89.1. The estimated planetary A indices were 6, 8, 12, 12, 13, 8 and 8, with a mean of 9.6. The estimated mid-latitude A indices were 6, 6, 10, 8, 10, 7 and 6, with a mean of 7.6.

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The K7RA Solar Update

(ARRL) Sunspot activity is up sharply this week, with the average daily sunspot number increasing more than 55 points to 89.9, while the average solar flux rose nearly 20 points to 103.1. Sunspot numbers for May 26-June 1 were 40, 65, 91, 89, 105, 132 and 107, with a mean of 89.9. The 10.7 cm flux was 82.7, 89.9, 101, 110.8, 111.9, 112 and 113.6, with a mean of 103.1. The estimated planetary A indices were 7, 11, 40, 32, 9, 13 and 12, with a mean of 17.7. The estimated mid-latitude A indices were 4, 7, 32, 17, 7, 10, and 9, with a mean of 12.3

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