Solar flares — Apr 12, 2001
The strongest solar flare in the day
      
      Flare of X2.0 level (very strong) — in 11:28
    
      Solar activity index
Value for Apr 12, 2001 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Apr 11, 2001 to Apr 12, 2001
Time zone — UTC+01 (London) - summer time

          This chart in PNG format — high resolution
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  List of solar flares for Apr 12, 2001
Total number of flares of class C and higher — 5 flares
C type — 3 | M type — 1 | X type — 1
| start | maximum | end | region | |
|---|---|---|---|---|
| 
             
              
              C1.0
             
           | 
          17:28 | 17:29 | 17:31 | — | 
| 
             
              
              C1.1
             
           | 
          15:54 | 16:01 | 16:04 | — | 
| 
             
              
              X2.0
             
           | 
          10:39 | 11:28 | 11:49 | 9415 | 
| 
             
              
              M1.3
             
           | 
          03:56 | 04:04 | 04:29 | 9415 | 
| 
             
              
              C7.7
             
           | 
          00:56 | 01:08 | 01:25 | 9415 | 
