Solar flares on October 22, 2001
The most powerful solar flare in 24 hours
X1.2 (very strong) flare - October 22 at 10:59 AM
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-07 (Phoenix)
List of solar flares for October 22, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 6 | M class — 3 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 23:04 | 23:07 | 23:14 | 9678 |
| C2.5 | 22:05 | 22:10 | 22:20 | — |
| M6.5 | 19:11 | 19:23 | 19:34 | 9672 |
| M1.3 | 17:13 | 17:23 | 17:35 | 9672 |
| C7.9 | 13:57 | 14:06 | 14:14 | — |
| X1.2 | 10:44 | 10:59 | 11:14 | 9672 |
| M6.7 | 07:27 | 08:08 | 08:31 | 9672 |
| C7.5 | 05:05 | 05:17 | 05:30 | 9669 |
| C5.6 | 04:36 | 04:41 | 04:45 | 9672 |
| C4.3 | 02:53 | 02:56 | 03:00 | — |