Solar flares — Jan 20, 2003
The strongest solar flare in the day
      
      Flare of C4.3 level (normal) — in 07:10
    
      Solar activity index
Value for Jan 20, 2003 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Jan 19, 2003 to Jan 20, 2003
Time zone — UTC+00 (London)

          This chart in PNG format — high resolution
      API data: JSON or TXT
        
  List of solar flares for Jan 20, 2003
Total number of flares of class C and higher — 5 flares
C type — 5 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
| 
             
              
              C1.5
             
           | 
          23:53 | 23:58 | 00:01 | — | 
| 
             
              
              C1.6
             
           | 
          23:22 | 23:27 | 23:35 | 260 | 
| 
             
              
              C1.5
             
           | 
          21:43 | 21:46 | 21:49 | 267 | 
| 
             
              
              C1.7
             
           | 
          18:30 | 19:21 | 19:33 | — | 
| 
             
              
              C4.3
             
           | 
          07:04 | 07:10 | 07:16 | 260 | 
