Solar flares on May 21, 2001
The most powerful solar flare in 24 hours
C9.0 (normal) flare - May 21 at 8:50 AM
Solar activity index
Value as of the end of the day on May 21, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 20, 2001 to May 21, 2001
Time zone — UTC+05:30 (Nasik)
List of solar flares for May 21, 2001
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 14:38 | 14:49 | 14:54 | — |
| C1.7 | 13:05 | 13:40 | 14:37 | — |
| C1.0 | 11:01 | 11:19 | 11:34 | — |
| C1.1 | 09:41 | 10:02 | 10:07 | 9461 |
| C9.0 | 08:41 | 08:50 | 08:55 | 9461 |
| C1.3 | 01:00 | 01:10 | 01:15 | — |