Solar flares on September 20, 2003
The most powerful solar flare in 24 hours
C3.6 (normal) flare - September 20 at 3:36 PM
Solar activity index
Value as of the end of the day on September 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 19, 2003 to September 20, 2003
Time zone — UTC+00
List of solar flares for September 20, 2003
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 22:57 | 23:10 | 23:19 | 464 |
| C2.0 | 21:29 | 21:36 | 21:43 | — |
| C3.6 | 15:24 | 15:36 | 15:57 | — |
| C1.3 | 10:34 | 11:45 | 12:16 | — |
| C1.7 | 06:30 | 06:45 | 07:05 | — |
| C3.0 | 05:03 | 05:12 | 05:15 | — |
| C1.1 | 04:38 | 04:48 | 04:52 | — |