Solar flares on February 28, 2011
The most powerful solar flare in 24 hours
M1.1 (strong) flare - February 28 at 3:52 PM
Solar activity index
Value as of the end of the day on February 28, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 27, 2011 to February 28, 2011
Time zone — UTC+03 (Sochi)
List of solar flares for February 28, 2011
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 18:44 | 18:52 | 18:59 | 1164 |
| M1.1 | 15:38 | 15:52 | 16:03 | 1164 |
| C1.2 | 15:02 | 15:07 | 15:18 | 1164 |
| C1.5 | 12:38 | 12:52 | 13:03 | 1164 |
| C2.4 | 10:34 | 10:38 | 10:40 | 1164 |
| C2.0 | 10:01 | 10:10 | 10:16 | 1164 |
| C1.1 | 09:30 | 09:38 | 09:49 | 1164 |
| C1.7 | 08:24 | 08:33 | 08:40 | 1164 |