Solar flares on October 22, 2001
The most powerful solar flare in 24 hours
X1.2 (very strong) flare - October 22 at 1:59 PM
Solar activity index
Value as of the end of the day on October 22, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 21, 2001 to October 22, 2001
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for October 22, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 5 | M class — 3 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| M6.5 | 22:11 | 22:23 | 22:34 | 9672 |
| M1.3 | 20:13 | 20:23 | 20:35 | 9672 |
| C7.9 | 16:57 | 17:06 | 17:14 | — |
| X1.2 | 13:44 | 13:59 | 14:14 | 9672 |
| M6.7 | 10:27 | 11:08 | 11:31 | 9672 |
| C7.5 | 08:05 | 08:17 | 08:30 | 9669 |
| C5.6 | 07:36 | 07:41 | 07:45 | 9672 |
| C4.3 | 05:53 | 05:56 | 06:00 | — |
| C4.3 | 01:05 | 01:08 | 01:10 | — |