Solar flares

Viewing archive of Thursday, 25 December 1997

The operational data in the graph above has been modified to remove the scaling factor that has been applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor in the operational data, flare indices for the operational data were reported as 42% smaller than for the science quality data. The scaling factor has also been removed from the solar flare list to reflect the true physical units.

SWPC

Sunspot number	New regions	Background flux	Maximum flux
56 -11	0	B2	B6.03

Region		Start	Maximum	End
8124	B6.03	02:07	02:12	02:17
	B2.94	03:27	03:30	03:32
8124	B4.1	09:52	09:56	10:01

All times in UTC

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Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 06:01 UTC

The solar wind speed is currently moderately high (576.18 km/sec.)

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