Solar flares on September 30, 2001
The most powerful solar flare in 24 hours
M1.2 (strong) flare - September 30 at 5:36 PM
Solar activity index
Value as of the end of the day on September 30, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2001 to September 30, 2001
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for September 30, 2001
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.2 | 17:29 | 17:36 | 17:45 | — |
| C5.1 | 15:46 | 16:14 | 16:29 | — |
| C4.4 | 14:41 | 14:45 | 14:51 | 9636 |
| C5.1 | 13:44 | 13:52 | 13:57 | — |
| C6.6 | 13:27 | 13:33 | 13:36 | 9628 |
| M1.0 | 07:31 | 07:41 | 08:19 | 9628 |
| C3.3 | 05:40 | 05:42 | 05:45 | 9637 |
| C6.1 | 04:10 | 04:39 | 04:45 | 9636 |
| C5.8 | 02:49 | 02:53 | 03:04 | 9636 |
| C8.4 | 01:29 | 02:06 | 02:20 | 9636 |
| C8.3 | 23:38 | 00:01 | 00:18 | — |