Solar flares on September 9, 2001
The most powerful solar flare in 24 hours
M9.5 (strong) flare - September 9 at 10:45 PM
Solar activity index
Value as of the end of the day on September 9, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 8, 2001 to September 9, 2001
Time zone — UTC+02 (Bern) — summer time
List of solar flares for September 9, 2001
The total number of solar flares of class C and higher — 14 flares
C class — 8 | M class — 6 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M9.5 | 22:40 | 22:45 | 22:48 | 9608 |
| M2.0 | 20:35 | 20:41 | 20:43 | 9608 |
| C4.5 | 20:22 | 20:28 | 20:34 | 9608 |
| M2.2 | 17:23 | 17:26 | 17:28 | 9608 |
| M3.4 | 17:10 | 17:16 | 17:21 | 9607 |
| C7.5 | 15:31 | 15:35 | 15:44 | 9608 |
| C4.7 | 14:29 | 14:35 | 14:41 | — |
| C3.0 | 13:16 | 13:22 | 13:25 | 9608 |
| C3.2 | 12:52 | 12:56 | 12:58 | 9608 |
| M1.0 | 11:55 | 12:01 | 12:06 | 9608 |
| C4.5 | 10:00 | 10:05 | 10:11 | 9607 |
| M1.9 | 04:32 | 04:40 | 04:47 | 9608 |
| C5.0 | 03:39 | 03:45 | 03:51 | 9608 |
| C4.6 | 01:14 | 01:53 | 01:58 | 9607 |