Solar flares on December 11, 2001
The most powerful solar flare in 24 hours
X2.8 (very strong) flare - December 11 at 1:38 PM
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+05:30 (Indore)
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 |
|---|---|---|---|---|
| M1.3 | 20:12 | 20:21 | 20:27 | 9727 |
| C4.6 | 15:36 | 15:49 | 15:59 | — |
| X2.8 | 13:28 | 13:38 | 13:44 | 9733 |
| C2.7 | 09:42 | 09:46 | 09:51 | — |
| C3.44 | 09:00 | 09:13 | 09:17 | — |
| C7.0 | 04:09 | 04:18 | 05:30 | 9733 |