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  • Friday, January 13, 2012

    The K7RA Solar Update

    The average daily sunspot numbers were up this week by a tiny bit, from 88.1 to 90.6, while the average daily solar flux was down slightly, from 136.2 to 134.9. Sunspot numbers for January 5-11 were 99, 118, 110, 90, 90, 63 and 64, with a mean of 90.6. The 10.7 cm flux was 141.3, 135.5, 140.5, 135.8, 142.3, 128.8 and 120.1, with a mean of 134.9. The estimated planetary A indices were 5, 5, 5, 4...


    Via ARRL - Read the full Article