Geomagnetic conditions are quiet this week, but they may become slightly unsettled over this weekend. The average daily sunspot numbers were down more than 18 points to 74.9, while the average daily solar flux was off less than 4 points to 113.4. Sunspot numbers for April 21-27 were 100, 103, 80, 78, 67, 57 and 39, with a mean of 74.9. The 10.7 cm flux was 113, 114.8, 119.1, 117.2, 112.1, 109.4...
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