Solar flares on September 13, 2001
The most powerful solar flare in 24 hours
C9.6 (normal) flare - September 13 at 12:49 AM
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+03 (Riga)
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 |
|---|---|---|---|---|
| C5.8 | 22:48 | 22:51 | 22:54 | — |
| C7.0 | 18:57 | 19:02 | 19:04 | 9610 |
| C2.4 | 16:10 | 16:12 | 16:14 | 9610 |
| C2.4 | 16:03 | 16:06 | 16:07 | 9610 |
| C4.6 | 06:51 | 06:54 | 06:59 | 9608 |
| C6.6 | 05:00 | 05:07 | 05:17 | 9616 |
| C7.0 | 04:21 | 04:25 | 04:28 | — |
| C3.7 | 03:34 | 03:37 | 03:41 | — |
| C9.6 | 00:05 | 00:49 | 01:11 | — |