Solar flares — Aug 18, 2001
The strongest solar flare in the day
      
      Flare of C3.5 level (normal) — in 04:28
    
      Solar activity index
Value for Aug 18, 2001 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Aug 17, 2001 to Aug 18, 2001
Time zone — UTC+01 (London) - summer time

          This chart in PNG format — high resolution
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  List of solar flares for Aug 18, 2001
Total number of flares of class C and higher — 10 flares
C type — 10 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
| 
             
              
              C2.8
             
           | 
          13:45 | 13:51 | 13:59 | 9582 | 
| 
             
              
              C3.1
             
           | 
          12:09 | 12:17 | 12:23 | 9582 | 
| 
             
              
              C1.1
             
           | 
          09:28 | 09:32 | 09:35 | 9586 | 
| 
             
              
              C1.9
             
           | 
          07:51 | 07:54 | 07:57 | 9582 | 
| 
             
              
              C1.4
             
           | 
          06:06 | 06:15 | 06:24 | 9582 | 
| 
             
              
              C2.9
             
           | 
          04:55 | 05:03 | 05:05 | — | 
| 
             
              
              C3.5
             
           | 
          04:22 | 04:28 | 04:36 | 9582 | 
| 
             
              
              C1.2
             
           | 
          03:04 | 03:09 | 03:12 | — | 
| 
             
              
              C1.7
             
           | 
          02:03 | 02:12 | 02:16 | — | 
| 
             
              
              C1.0
             
           | 
          01:19 | 01:43 | 01:48 | 9585 | 
