Solar flares on February 15, 2011
The most powerful solar flare in 24 hours
M1.0 (strong) flare - February 15 at 6:39 PM
Solar activity index
Value as of the end of the day on February 15, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 14, 2011 to February 15, 2011
Time zone — UTC-07 (Santa Fe)
List of solar flares for February 15, 2011
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.2 | 23:18 | 23:22 | 23:29 | — |
| C5.9 | 22:40 | 22:45 | 22:55 | — |
| C2.2 | 18:56 | 19:00 | 19:05 | 1158 |
| M1.0 | 18:32 | 18:39 | 18:46 | — |
| C2.0 | 17:58 | 18:05 | 18:10 | — |
| C1.3 | 15:49 | 15:54 | 15:56 | 1158 |
| C6.6 | 12:30 | 13:33 | 13:53 | 1158 |
| C1.7 | 11:07 | 11:44 | 11:57 | 1158 |
| C4.8 | 07:32 | 07:44 | 07:51 | 1158 |
| C1.0 | 03:02 | 03:07 | 03:16 | — |