Solar flares on April 11, 2002
The most powerful solar flare in 24 hours
C9.9 (normal) flare - April 11 at 3:53 AM
Solar activity index
Value as of the end of the day on April 11, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 10, 2002 to April 11, 2002
Time zone — UTC+02 (Bern) — summer time
List of solar flares for April 11, 2002
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.2 | 20:33 | 20:38 | 20:43 | — |
| C9.2 | 18:16 | 18:26 | 18:33 | 9904 |
| C2.0 | 17:53 | 17:58 | 18:05 | — |
| C3.4 | 11:24 | 11:30 | 11:36 | — |
| C2.3 | 11:01 | 11:05 | 11:11 | — |
| C4.4 | 07:59 | 08:10 | 08:20 | 9900 |
| C9.9 | 03:44 | 03:53 | 04:04 | 9893 |
| C3.2 | 00:25 | 00:42 | 00:55 | 9900 |