Solar flares on April 23, 2001
The most powerful solar flare in 24 hours
M4.0 (strong) flare - April 23 at 3:30 PM
Solar activity index
Value as of the end of the day on April 23, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 22, 2001 to April 23, 2001
Time zone — UTC-05 (Jackson) — summer time
List of solar flares for April 23, 2001
The total number of solar flares of class C and higher — 7 flares
C class — 6 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.4 | 22:46 | 22:57 | 23:22 | 9433 |
| C5.3 | 19:15 | 19:22 | 19:30 | 9433 |
| C3.2 | 18:36 | 18:40 | 18:44 | 9433 |
| M4.0 | 15:15 | 15:30 | 15:43 | 9433 |
| C2.8 | 07:06 | 07:23 | 07:36 | 9431 |
| C9.1 | 05:06 | 05:18 | 05:23 | 9433 |
| C2.2 | 01:16 | 01:52 | 02:41 | — |