Solar flares on February 21, 2001
The most powerful solar flare in 24 hours
C6.2 (normal) flare - February 21 at 2:27 PM
Solar activity index
Value as of the end of the day on February 21, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 20, 2001 to February 21, 2001
Time zone — UTC+00
List of solar flares for February 21, 2001
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 22:51 | 22:59 | 23:06 | — |
| C1.2 | 20:05 | 20:10 | 20:14 | 9354 |
| C6.2 | 14:11 | 14:27 | 14:40 | 9354 |
| C3.0 | 08:07 | 08:20 | 08:28 | — |