Solar flares on February 4, 2003
The most powerful solar flare in 24 hours
C1.6 (normal) flare - February 4 at 9:21 PM
Solar activity index
Value as of the end of the day on February 4, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 3, 2003 to February 4, 2003
Time zone — UTC+00 (London)
List of solar flares for February 4, 2003
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 21:13 | 21:21 | 21:26 | 277 |
| C1.4 | 20:04 | 20:15 | 20:31 | 278 |