Solar flares on October 23, 2001
The most powerful solar flare in 24 hours
C7.7 (normal) flare - October 23 at 3:03 AM
Solar activity index
Value as of the end of the day on October 23, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 22, 2001 to October 23, 2001
Time zone — UTC-05 (Jackson) — summer time
List of solar flares for October 23, 2001
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 23:20 | 23:24 | 23:30 | — |
| C1.9 | 21:35 | 21:38 | 21:45 | — |
| C1.7 | 19:17 | 19:21 | 19:25 | — |
| C2.3 | 10:05 | 10:12 | 10:18 | 9672 |
| C2.0 | 09:14 | 09:17 | 09:21 | 9672 |
| C6.7 | 07:25 | 07:29 | 07:32 | 9672 |
| C4.4 | 07:01 | 07:08 | 07:12 | 9672 |
| C2.6 | 03:31 | 03:35 | 03:39 | — |
| C7.7 | 02:56 | 03:03 | 03:08 | 9676 |
| C2.3 | 01:04 | 01:07 | 01:14 | 9678 |
| C2.5 | 00:05 | 00:10 | 00:20 | — |