Solar flares on November 21, 2001
The most powerful solar flare in 24 hours
C6.3 (normal) flare - November 21 at 6:18 PM
Solar activity index
Value as of the end of the day on November 21, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 20, 2001 to November 21, 2001
Time zone — UTC+00 (London)
List of solar flares for November 21, 2001
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 20:35 | 20:40 | 20:48 | — |
| C6.3 | 18:05 | 18:18 | 18:24 | 9704 |
| C2.8 | 17:48 | 17:52 | 17:58 | 9704 |
| C4.7 | 12:07 | 14:58 | 16:50 | 9704 |
| C4.4 | 11:00 | 11:10 | 11:19 | 9704 |
| C1.8 | 10:05 | 10:08 | 10:13 | 9704 |
| C1.4 | 09:47 | 09:51 | 09:54 | 9704 |
| C2.7 | 08:50 | 09:00 | 09:04 | — |
| C3.7 | 08:27 | 08:33 | 08:39 | 9704 |
| C3.5 | 07:29 | 07:34 | 07:47 | — |
| C2.4 | 04:10 | 04:28 | 04:49 | 9704 |
| C1.6 | 01:25 | 01:27 | 01:31 | 9704 |