Solar flares on December 15, 2001
The most powerful solar flare in 24 hours
M1.5 (strong) flare - December 15 at 8:24 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-05 (Kapuskasing)
List of solar flares for December 15, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 8 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.0 | 22:09 | 22:28 | 22:48 | 9733 |
| M1.5 | 20:14 | 20:24 | 20:29 | 9733 |
| C3.5 | 18:11 | 18:15 | 18:18 | 9733 |
| C3.3 | 16:24 | 16:29 | 16:32 | — |
| C3.3 | 14:50 | 14:53 | 14:58 | — |
| C2.9 | 13:21 | 13:24 | 13:26 | 9733 |
| C4.3 | 12:28 | 12:33 | 12:35 | 9733 |
| C5.0 | 11:56 | 11:59 | 12:01 | — |
| C9.4 | 07:39 | 07:53 | 08:03 | — |
| C4.9 | 05:05 | 05:10 | 05:19 | 9733 |