Solar flares on June 21, 2001
The most powerful solar flare in 24 hours
C3.5 (normal) flare - June 21 at 5:10 AM
Solar activity index
Value as of the end of the day on June 21, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 20, 2001 to June 21, 2001
Time zone — UTC-06 (Fort Smith) — summer time
List of solar flares for June 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 |
|---|---|---|---|---|
| C2.4 | 15:29 | 15:35 | 15:44 | — |
| C2.3 | 09:58 | 10:02 | 10:07 | 9503 |
| C1.4 | 07:58 | 08:01 | 08:04 | — |
| C3.5 | 05:02 | 05:10 | 05:22 | — |
| C2.5 | 02:48 | 03:17 | 03:39 | — |