Solar flares on December 15, 2001
The most powerful solar flare in 24 hours
C9.4 (normal) flare - December 15 at 1:53 PM
Solar activity index
Value as of the end of the day on December 15, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 14, 2001 to December 15, 2001
Time zone — UTC+01 (Monaco)
List of solar flares for December 15, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.3 | 22:24 | 22:29 | 22:32 | — |
| C3.3 | 20:50 | 20:53 | 20:58 | — |
| C2.9 | 19:21 | 19:24 | 19:26 | 9733 |
| C4.3 | 18:28 | 18:33 | 18:35 | 9733 |
| C5.0 | 17:56 | 17:59 | 18:01 | — |
| C9.4 | 13:39 | 13:53 | 14:03 | — |
| C4.9 | 11:05 | 11:10 | 11:19 | 9733 |
| C8.3 | 01:51 | 02:01 | 02:15 | 9727 |
| C6.5 | 01:24 | 01:30 | 01:41 | 9733 |