Solar flares on October 15, 2011
The most powerful solar flare in 24 hours
C5.0 (normal) flare - October 15 at 7:43 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+05:30 (Ranchi)
List of solar flares for October 15, 2011
The total number of solar flares of class C and higher — 13 flares
C class — 13 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 23:43 | 23:49 | 23:55 | 1316 |
| C1.3 | 22:54 | 23:00 | 23:13 | — |
| C2.3 | 21:40 | 21:51 | 21:56 | 1319 |
| C5.0 | 19:26 | 19:43 | 19:50 | 1319 |
| C2.0 | 18:48 | 18:55 | 19:03 | 1319 |
| C1.6 | 18:06 | 18:09 | 18:11 | 1314 |
| C1.1 | 16:37 | 16:54 | 17:18 | 1313 |
| C2.3 | 09:49 | 10:30 | 10:34 | 1318 |
| C1.3 | 06:37 | 06:42 | 06:51 | 1319 |
| C1.1 | 04:43 | 04:46 | 04:50 | 1319 |
| C1.3 | 03:01 | 03:07 | 03:13 | 1319 |
| C1.3 | 02:09 | 02:16 | 02:23 | 1319 |
| C1.1 | 01:00 | 01:13 | 01:24 | — |