Solar flares on April 13, 2002
The most powerful solar flare in 24 hours
C3.6 (normal) flare - April 13 at 10:30 AM
Solar activity index
Value as of the end of the day on April 13, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 12, 2002 to April 13, 2002
Time zone — UTC+00
List of solar flares for April 13, 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 |
|---|---|---|---|---|
| C3.4 | 21:59 | 22:06 | 22:18 | — |
| C2.91 | 17:06 | 17:31 | 17:41 | 9901 |
| C2.3 | 16:29 | 16:38 | 16:49 | 9907 |
| C1.92 | 15:15 | 15:25 | 15:33 | 9906 |
| C2.6 | 13:31 | 13:37 | 13:42 | — |
| C3.1 | 12:08 | 12:13 | 12:20 | 9907 |
| C3.6 | 10:26 | 10:30 | 10:32 | 9900 |
| C3.2 | 10:08 | 10:13 | 10:20 | — |
| C3.3 | 05:06 | 05:30 | 05:56 | — |