Solar flares on February 4, 2001
The most powerful solar flare in 24 hours
C2.5 (normal) flare - February 4 at 4:41 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-04 (Halifax)
List of solar flares for February 4, 2001
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 19:08 | 19:13 | 19:19 | 9334 |
| C1.0 | 08:42 | 08:45 | 08:50 | 9334 |
| C1.0 | 08:24 | 08:31 | 08:38 | — |
| C1.4 | 05:23 | 05:28 | 05:37 | — |
| C2.5 | 04:35 | 04:41 | 04:47 | 9330 |
| C1.7 | 04:18 | 04:23 | 04:27 | — |
| C2.0 | 02:04 | 02:10 | 02:16 | — |