Solar flares on February 4, 2002
The most powerful solar flare in 24 hours
M2.3 (strong) flare - February 4 at 7:02 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+01 (Bern)
List of solar flares for February 4, 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 |
|---|---|---|---|---|
| C7.8 | 19:58 | 20:09 | 20:18 | 9802 |
| C3.0 | 16:22 | 16:31 | 16:42 | — |
| C2.7 | 11:06 | 11:24 | 11:32 | 9802 |
| M1.56 | 07:41 | 07:58 | 08:09 | — |
| M2.3 | 06:42 | 07:02 | 07:11 | — |
| C7.3 | 02:48 | 03:11 | 03:13 | 9801 |