Solar flares on September 15, 2001
The most powerful solar flare in 24 hours
M5.6 (strong) flare - September 15 at 11:53 PM
Solar activity index
Value as of the end of the day on September 15, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 14, 2001 to September 15, 2001
Time zone — UTC-04 (Kapuskasing) — summer time
List of solar flares for September 15, 2001
The total number of solar flares of class C and higher — 13 flares
C class — 10 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M5.6 | 23:39 | 23:53 | 00:18 | 9608 |
| C5.9 | 23:03 | 23:13 | 23:27 | — |
| C5.8 | 22:42 | 22:48 | 22:54 | — |
| C1.6 | 22:23 | 22:31 | 22:35 | — |
| C2.5 | 20:33 | 20:34 | 20:37 | — |
| C2.9 | 20:09 | 20:21 | 20:32 | — |
| C2.2 | 19:49 | 19:58 | 20:08 | — |
| C2.6 | 18:16 | 18:27 | 18:31 | — |
| C5.4 | 17:17 | 17:25 | 17:36 | 9616 |
| C8.8 | 16:25 | 16:33 | 16:46 | 9608 |
| M1.3 | 11:44 | 11:59 | 12:10 | 9616 |
| M1.5 | 07:04 | 07:28 | 07:54 | 9608 |
| C4.7 | 01:19 | 01:26 | 01:37 | — |