Solar flares on December 15, 2001
The most powerful solar flare in 24 hours
M1.5 (strong) flare - December 15 at 7:24 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-06 (Jackson)
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 | 21:09 | 21:28 | 21:48 | 9733 |
| M1.5 | 19:14 | 19:24 | 19:29 | 9733 |
| C3.5 | 17:11 | 17:15 | 17:18 | 9733 |
| C3.3 | 15:24 | 15:29 | 15:32 | — |
| C3.3 | 13:50 | 13:53 | 13:58 | — |
| C2.9 | 12:21 | 12:24 | 12:26 | 9733 |
| C4.3 | 11:28 | 11:33 | 11:35 | 9733 |
| C5.0 | 10:56 | 10:59 | 11:01 | — |
| C9.4 | 06:39 | 06:53 | 07:03 | — |
| C4.9 | 04:05 | 04:10 | 04:19 | 9733 |