Solar flares on February 4, 2002
The most powerful solar flare in 24 hours
M2.3 (strong) flare - February 4 at 6:02 AM
Solar activity index
Value as of the end of the day on February 4, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 3, 2002 to February 4, 2002
Time zone — UTC+00
List of solar flares for February 4, 2002
The total number of solar flares of class C and higher — 7 flares
C class — 4 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.3 | 23:23 | 23:30 | 23:34 | 9802 |
| C7.8 | 18:58 | 19:09 | 19:18 | 9802 |
| C3.0 | 15:22 | 15:31 | 15:42 | — |
| C2.7 | 10:06 | 10:24 | 10:32 | 9802 |
| M1.56 | 06:41 | 06:58 | 07:09 | — |
| M2.3 | 05:42 | 06:02 | 06:11 | — |
| C7.3 | 01:48 | 02:11 | 02:13 | 9801 |