Solar flares on April 9, 2001
The most powerful solar flare in 24 hours
M7.9 (strong) flare - April 9 at 4:34 PM
Solar activity index
Value as of the end of the day on April 9, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 8, 2001 to April 9, 2001
Time zone — UTC+01 (Dublin) — summer time
List of solar flares for April 9, 2001
The total number of solar flares of class C and higher — 5 flares
C class — 4 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 19:24 | 19:29 | 19:39 | 9415 |
| M7.9 | 16:20 | 16:34 | 17:00 | 9415 |
| C6.1 | 10:20 | 10:28 | 10:36 | 9415 |
| C3.0 | 07:46 | 07:57 | 08:07 | 9415 |
| C6.4 | 02:59 | 03:56 | 05:14 | 9415 |