Solar flares on December 15, 2001
The most powerful solar flare in 24 hours
C9.4 (normal) flare - December 15 at 12:53 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+00
List of solar flares for December 15, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.5 | 23:11 | 23:15 | 23:18 | 9733 |
| C3.3 | 21:24 | 21:29 | 21:32 | — |
| C3.3 | 19:50 | 19:53 | 19:58 | — |
| C2.9 | 18:21 | 18:24 | 18:26 | 9733 |
| C4.3 | 17:28 | 17:33 | 17:35 | 9733 |
| C5.0 | 16:56 | 16:59 | 17:01 | — |
| C9.4 | 12:39 | 12:53 | 13:03 | — |
| C4.9 | 10:05 | 10:10 | 10:19 | 9733 |
| C8.3 | 00:51 | 01:01 | 01:15 | 9727 |
| C6.5 | 00:24 | 00:30 | 00:41 | 9733 |