Solar flares on November 21, 2001
The most powerful solar flare in 24 hours
C6.3 (normal) flare - November 21 at 1:18 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-05 (Jacksonville)
List of solar flares for November 21, 2001
The total number of solar flares of class C and higher — 13 flares
C class — 13 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 20:57 | 21:02 | 21:08 | — |
| C1.4 | 20:49 | 20:53 | 20:57 | 9704 |
| C1.8 | 19:06 | 19:12 | 19:17 | — |
| C1.4 | 15:35 | 15:40 | 15:48 | — |
| C6.3 | 13:05 | 13:18 | 13:24 | 9704 |
| C2.8 | 12:48 | 12:52 | 12:58 | 9704 |
| C4.7 | 07:07 | 09:58 | 11:50 | 9704 |
| C4.4 | 06:00 | 06:10 | 06:19 | 9704 |
| C1.8 | 05:05 | 05:08 | 05:13 | 9704 |
| C1.4 | 04:47 | 04:51 | 04:54 | 9704 |
| C2.7 | 03:50 | 04:00 | 04:04 | — |
| C3.7 | 03:27 | 03:33 | 03:39 | 9704 |
| C3.5 | 02:29 | 02:34 | 02:47 | — |