Solar flares on February 21, 2001
The most powerful solar flare in 24 hours
C6.2 (normal) flare - February 21 at 9:27 AM
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-05 (Augusta)
List of solar flares for February 21, 2001
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 20:56 | 20:59 | 21:02 | 9353 |
| C1.8 | 17:51 | 17:59 | 18:06 | — |
| C1.2 | 15:05 | 15:10 | 15:14 | 9354 |
| C6.2 | 09:11 | 09:27 | 09:40 | 9354 |
| C3.0 | 03:07 | 03:20 | 03:28 | — |