Solar flares on September 15, 2011
The most powerful solar flare in 24 hours
C9.2 (normal) flare - September 15 at 2:21 AM
Solar activity index
Value as of the end of the day on September 15, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 14, 2011 to September 15, 2011
Time zone — UTC+05:30 (Ambattur)
List of solar flares for September 15, 2011
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 |
|---|---|---|---|---|
| C3.0 | 21:48 | 21:56 | 22:11 | — |
| C1.4 | 16:25 | 16:29 | 16:32 | — |
| C1.3 | 09:58 | 10:02 | 10:05 | — |
| C1.9 | 08:34 | 08:38 | 08:41 | — |
| C2.3 | 08:11 | 08:16 | 08:20 | 1297 |
| C1.5 | 07:29 | 07:38 | 07:50 | — |
| C4.6 | 05:54 | 05:59 | 06:02 | 1297 |
| C3.1 | 04:59 | 05:07 | 05:11 | 1295 |
| C9.2 | 02:12 | 02:21 | 02:24 | 1297 |