Solar flares on December 4, 2001
The most powerful solar flare in 24 hours
M1.3 (strong) flare - December 4 at 5:46 AM
Solar activity index
Value as of the end of the day on December 4, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 3, 2001 to December 4, 2001
Time zone — UTC+00
List of solar flares for December 4, 2001
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.3 | 08:55 | 09:00 | 09:05 | 9718 |
| C3.3 | 07:27 | 07:31 | 07:37 | 9718 |
| M1.3 | 05:37 | 05:46 | 05:58 | — |
| C3.4 | 04:38 | 04:43 | 04:49 | — |
| C3.8 | 01:19 | 01:25 | 01:35 | 9725 |
| M1.0 | 00:37 | 00:45 | 00:53 | 9718 |