Solar flares on February 4, 2001
The most powerful solar flare in 24 hours
C2.5 (normal) flare - February 4 at 9:41 AM
Solar activity index
Value as of the end of the day on February 4, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 3, 2001 to February 4, 2001
Time zone — UTC+01 (Bern)
List of solar flares for February 4, 2001
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 13:42 | 13:45 | 13:50 | 9334 |
| C1.0 | 13:24 | 13:31 | 13:38 | — |
| C1.4 | 10:23 | 10:28 | 10:37 | — |
| C2.5 | 09:35 | 09:41 | 09:47 | 9330 |
| C1.7 | 09:18 | 09:23 | 09:27 | — |
| C2.0 | 07:04 | 07:10 | 07:16 | — |
| C1.7 | 03:35 | 03:53 | 04:26 | 9334 |
| C1.7 | 01:02 | 01:22 | 02:11 | 9330 |