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...
More...
More...
