Solar flares on September 23, 2001
The most powerful solar flare in 24 hours
M1.1 (strong) flare - September 23 at 7:37 PM
Solar activity index
Value as of the end of the day on September 23, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 22, 2001 to September 23, 2001
Time zone — UTC+08 (Ulan-Ude)
List of solar flares for September 23, 2001
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.5 | 23:39 | 23:44 | 23:58 | 9628 |
| C6.5 | 22:17 | 22:26 | 22:39 | 9632 |
| C3.4 | 21:49 | 21:59 | 22:05 | 9632 |
| M1.1 | 19:31 | 19:37 | 19:43 | 9632 |
| C3.2 | 17:57 | 18:02 | 18:08 | 9628 |
| C4.4 | 09:02 | 09:06 | 09:08 | 9622 |
| C3.7 | 06:01 | 06:07 | 06:18 | 9622 |
| C5.4 | 02:08 | 02:17 | 02:32 | 9628 |