Solar flares on December 11, 2001
The most powerful solar flare in 24 hours
X2.8 (very strong) flare - December 11 at 9:08 AM
Solar activity index
Value as of the end of the day on December 11, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 10, 2001 to December 11, 2001
Time zone — UTC+01 (Monaco)
List of solar flares for December 11, 2001
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.4 | 19:54 | 20:01 | 20:08 | — |
| M1.3 | 15:42 | 15:51 | 15:57 | 9727 |
| C4.6 | 11:06 | 11:19 | 11:29 | — |
| X2.8 | 08:58 | 09:08 | 09:14 | 9733 |
| C2.7 | 05:12 | 05:16 | 05:21 | — |
| C3.44 | 04:30 | 04:43 | 04:47 | — |