Viewing archive of Tuesday, 21 April 2015

Sunspot numberNew regionsBackground fluxCM
153 282 1B9.047

Solar flares

Region X-ray Start Maximum End
2322 C1.2 03:49 03:54 04:07
2324 C1.1 05:36 05:42 05:52
2322 M1.0 07:08 07:21 07:27
2322 C2.4 09:55 10:02 10:14
2333 M2.2 10:17 10:40 10:59
2322 M2.2 11:49 11:57 12:02
2322 M4.0 15:24 15:45 15:51
2322 M2.1 16:55 17:00 17:09
2325 C5.0 20:50 20:59 21:13
2322 M1.8 21:39 21:45 21:55
2325 M1.2 21:58 22:01 22:04

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/04/20Kp6 (G2)
Number of spotless days in 2018:65
Last spotless day:2018/04/18

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