Viewing archive of Sunday, 20 September 2015

Sunspot numberNew regionsBackground fluxCM
74 131 1B3.422

Solar flares

Region Start Maximum End
2420 M1.5 04:55 05:03 05:17
2415 C2.6 09:32 09:34 09:36
2415 B5.7 12:25 12:28 12:31
2420 B9.1 13:49 13:54 13:58
2415 C1.4 14:09 14:14 14:24
2415 M2.1 17:32 18:03 18:29
- B8.2 23:24 23:28 23:31

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Current data suggest that it is not possible to see aurora now at middle latitudes
The density of the solar wind is moderate (22.02 p/cm3)

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/09/22Kp5 (G1)
Number of spotless days in 2018:152
Current stretch spotless days:13

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