Solar flares on February 4, 2002
The most powerful solar flare in 24 hours
M2.3 (strong) flare - February 4 at 2:02 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-04 (Halifax)
List of solar flares for February 4, 2002
The total number of solar flares of class C and higher — 6 flares
C class — 3 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.3 | 19:23 | 19:30 | 19:34 | 9802 |
| C7.8 | 14:58 | 15:09 | 15:18 | 9802 |
| C3.0 | 11:22 | 11:31 | 11:42 | — |
| C2.7 | 06:06 | 06:24 | 06:32 | 9802 |
| M1.56 | 02:41 | 02:58 | 03:09 | — |
| M2.3 | 01:42 | 02:02 | 02:11 | — |