Viewing archive of Tuesday, 21 August 2001

Sunspot numberNew regionsBackground fluxCM
169 -31 -1C1.161

Solar flares

Region Start Maximum End
- C3.0 00:10 00:18 00:28
9585 C1.3 01:56 02:00 02:06
- C1.9 03:31 03:37 03:46
- C1.6 07:21 07:48 08:13
- C2.7 10:35 13:03 14:34
- C1.9 20:52 20:57 21:02
- M1.5 21:51 21:57 22:00

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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:12

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