Solar flares on April 30, 2001
The most powerful solar flare in 24 hours
C5.1 (normal) flare - April 30 at 9:21 AM
Solar activity index
Value as of the end of the day on April 30, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 29, 2001 to April 30, 2001
Time zone — UTC+02 (Bern) — summer time
List of solar flares for April 30, 2001
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 |
|---|---|---|---|---|
| C2.5 | 17:18 | 17:22 | 17:30 | 9445 |
| C2.1 | 16:45 | 16:48 | 16:52 | — |
| C1.9 | 15:12 | 15:15 | 15:19 | 9445 |
| C1.6 | 13:54 | 13:57 | 14:01 | 9433 |
| C2.2 | 12:55 | 13:08 | 13:20 | — |
| C3.6 | 12:19 | 12:23 | 12:25 | 9445 |
| C5.1 | 09:17 | 09:21 | 09:23 | 9445 |
| C2.6 | 04:34 | 04:38 | 04:45 | 9433 |
| C3.2 | 01:23 | 01:27 | 01:29 | — |