There were several sunspot appearances this week. Sunspot numbers on April 25-29 were 11, 14, 12, 0 and 24, giving a weekly average of 8.7. Average daily solar flux changed from 69 to 69.2.
Geomagnetic activity remains quiet, with average daily planetary A index declining from 7.3 to 5.6.
On Thursday, new sunspot activity continued, with the daily sunspot number for April 30 at 35, and the total ...
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Geomagnetic activity remains quiet, with average daily planetary A index declining from 7.3 to 5.6.
On Thursday, new sunspot activity continued, with the daily sunspot number for April 30 at 35, and the total ...
Continue reading...