This week the average daily sunspot number moved up from 66.9 for the September 10-16 period, to 73 for the next seven days. Average daily solar flux changed from 97.3 to 106.7. There was one new sunspot group on September 20, two more on September 22, and another new one on September 23.
At 0005 UTC on September 20 the Australian Space Forecast Centre issued a geomagnetic disturbance warning fo...
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At 0005 UTC on September 20 the Australian Space Forecast Centre issued a geomagnetic disturbance warning fo...
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