Solar flares on September 13, 2001
The most powerful solar flare in 24 hours
C7.0 (normal) flare - September 13 at 4:02 PM
Solar activity index
Value as of the end of the day on September 13, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 12, 2001 to September 13, 2001
Time zone — UTC+00
List of solar flares for September 13, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.4 | 23:03 | 23:09 | 23:15 | — |
| C5.8 | 19:48 | 19:51 | 19:54 | — |
| C7.0 | 15:57 | 16:02 | 16:04 | 9610 |
| C2.4 | 13:10 | 13:12 | 13:14 | 9610 |
| C2.4 | 13:03 | 13:06 | 13:07 | 9610 |
| C4.6 | 03:51 | 03:54 | 03:59 | 9608 |
| C6.6 | 02:00 | 02:07 | 02:17 | 9616 |
| C7.0 | 01:21 | 01:25 | 01:28 | — |
| C3.7 | 00:34 | 00:37 | 00:41 | — |