Solar flares on April 9, 2001
The most powerful solar flare in 24 hours
M7.9 (strong) flare - April 9 at 11:34 AM
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-04 (Lansing) — summer time
List of solar flares for April 9, 2001
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 14:24 | 14:29 | 14:39 | 9415 |
| M7.9 | 11:20 | 11:34 | 12:00 | 9415 |
| C6.1 | 05:20 | 05:28 | 05:36 | 9415 |
| C3.0 | 02:46 | 02:57 | 03:07 | 9415 |