Solar flares on April 11, 2002
The most powerful solar flare in 24 hours
C9.2 (normal) flare - April 11 at 1:56 PM
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-02:30 (Saint john's) — summer time
List of solar flares for April 11, 2002
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 23:12 | 23:16 | 23:23 | 9906 |
| C1.5 | 22:47 | 22:50 | 22:53 | — |
| C1.6 | 20:27 | 20:30 | 20:36 | 9893 |
| C7.2 | 16:03 | 16:08 | 16:13 | — |
| C9.2 | 13:46 | 13:56 | 14:03 | 9904 |
| C2.0 | 13:23 | 13:28 | 13:35 | — |
| C3.4 | 06:54 | 07:00 | 07:06 | — |
| C2.3 | 06:31 | 06:35 | 06:41 | — |
| C4.4 | 03:29 | 03:40 | 03:50 | 9900 |