Sunspot numbers for August 20-26 were 0, 0, 0, 0, 0, 0 and 0 with a mean of 0. The 10.7 cm flux was 67.6, 66.4, 66.6, 67.3, 67.6, 67.1 and 67.3 with a mean of 67.1. The estimated planetary A indices were 11, 8, 5, 5, 3, 3 and 4 with a mean of 5.6. The estimated mid-latitude A indices were 8, 6, 3, 3, 1, 2 and 4 with a mean of 3.9. Geophysical Institute Prague predicts quiet to unsettled conditions August 28, quiet August 29-30, quiet to unsettled August 31, September 1 quiet, quiet to unsettled September 2 and active conditions on September 3. NOAA and the US Air Force predict the planetary A index for August 28-September 6 at 5, 7, 10, 7, 5, 12, 7, 5, 8 and 6.
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