Solar flares on September 9, 2001
The most powerful solar flare in 24 hours
M9.5 (strong) flare - September 9 at 8:45 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+00
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 |
|---|---|---|---|---|
| C4.9 | 22:33 | 22:38 | 22:41 | 9608 |
| M9.5 | 20:40 | 20:45 | 20:48 | 9608 |
| M2.0 | 18:35 | 18:41 | 18:43 | 9608 |
| C4.5 | 18:22 | 18:28 | 18:34 | 9608 |
| M2.2 | 15:23 | 15:26 | 15:28 | 9608 |
| M3.4 | 15:10 | 15:16 | 15:21 | 9607 |
| C7.5 | 13:31 | 13:35 | 13:44 | 9608 |
| C4.7 | 12:29 | 12:35 | 12:41 | — |
| C3.0 | 11:16 | 11:22 | 11:25 | 9608 |
| C3.2 | 10:52 | 10:56 | 10:58 | 9608 |
| M1.0 | 09:55 | 10:01 | 10:06 | 9608 |
| C4.5 | 08:00 | 08:05 | 08:11 | 9607 |
| M1.9 | 02:32 | 02:40 | 02:47 | 9608 |
| C5.0 | 01:39 | 01:45 | 01:51 | 9608 |