Solar flares on March 15, 2011
The most powerful solar flare in 24 hours
C2.9 (normal) flare - March 15 at 8:35 AM
Solar activity index
Value as of the end of the day on March 15, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 14, 2011 to March 15, 2011
Time zone — UTC-09 (Honolulu) — summer time
List of solar flares for March 15, 2011
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 23:35 | 23:47 | 23:49 | 1169 |
| C2.9 | 08:28 | 08:35 | 08:39 | 1169 |
| C1.1 | 02:21 | 02:25 | 02:27 | 1169 |
| C2.6 | 00:25 | 00:42 | 00:58 | 1169 |