Solar flares on September 11, 2003
The most powerful solar flare in 24 hours
C1.2 (normal) flare - September 11 at 4:54 PM
Solar activity index
Value as of the end of the day on September 11, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 10, 2003 to September 11, 2003
Time zone — UTC+02 (Brussels) — summer time
List of solar flares for September 11, 2003
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 16:46 | 16:54 | 17:07 | — |
| C1.0 | 15:48 | 16:12 | 16:24 | — |