Solar flares on October 15, 2011
The most powerful solar flare in 24 hours
C5.0 (normal) flare - October 15 at 5:13 PM
Solar activity index
Value as of the end of the day on October 15, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 14, 2011 to October 15, 2011
Time zone — UTC+03 (Sochi)
List of solar flares for October 15, 2011
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.9 | 23:35 | 23:47 | 23:56 | — |
| C1.5 | 21:13 | 21:19 | 21:25 | 1316 |
| C1.3 | 20:24 | 20:30 | 20:43 | — |
| C2.3 | 19:10 | 19:21 | 19:26 | 1319 |
| C5.0 | 16:56 | 17:13 | 17:20 | 1319 |
| C2.0 | 16:18 | 16:25 | 16:33 | 1319 |
| C1.6 | 15:36 | 15:39 | 15:41 | 1314 |
| C1.1 | 14:07 | 14:24 | 14:48 | 1313 |
| C2.3 | 07:19 | 08:00 | 08:04 | 1318 |
| C1.3 | 04:07 | 04:12 | 04:21 | 1319 |
| C1.1 | 02:13 | 02:16 | 02:20 | 1319 |
| C1.3 | 00:31 | 00:37 | 00:43 | 1319 |