Solar flares on April 9, 2002
The most powerful solar flare in 24 hours
M2.1 (strong) flare - April 9 at 12:42 AM
Solar activity index
Value as of the end of the day on April 9, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 8, 2002 to April 9, 2002
Time zone — UTC+00
List of solar flares for April 9, 2002
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 20:41 | 21:47 | 22:15 | — |
| C4.1 | 19:08 | 19:16 | 19:25 | — |
| C2.2 | 17:30 | 17:35 | 17:39 | — |
| M1.1 | 12:54 | 13:02 | 13:10 | — |
| C7.9 | 05:33 | 07:36 | 08:11 | 9899 |
| M2.1 | 00:38 | 00:42 | 00:50 | 9899 |