Viewing archive of Thursday, 18 April 2002

Sunspot numberNew regionsBackground fluxMaximum fluxC
160 232 2C1.3C9.466

Solar flares

RegionStartMaximumEnd
-C4.0 03:3503:4603:54
-C1.8 05:2705:3005:33
-C9.4 06:3607:0207:29
-C2.6 10:4410:4810:51
9907C1.5 14:3014:3314:35
9905C3.0 15:1216:1216:57

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Last X-flare:2017/09/10X8.2
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Last geomagnetic storm:2019/06/08Kp5 (G1)
Number of spotless days in 2019:106
Current stretch spotless days:33

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