Solar flares on June 20, 2001
The most powerful solar flare in 24 hours
C5.7 (normal) flare - June 20 at 5:09 PM
Solar activity index
Value as of the end of the day on June 20, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 19, 2001 to June 20, 2001
Time zone — UTC-06 (Denver) — summer time
List of solar flares for June 20, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.1 | 23:01 | 23:37 | 00:09 | — |
| C2.5 | 22:36 | 22:46 | 22:56 | 9504 |
| C1.8 | 21:16 | 21:19 | 21:22 | 9504 |
| C1.8 | 20:59 | 21:03 | 21:12 | — |
| C2.4 | 19:27 | 19:32 | 19:37 | 9504 |
| C2.5 | 19:09 | 19:17 | 19:23 | 9506 |
| C5.7 | 16:51 | 17:09 | 17:24 | — |
| C2.1 | 16:44 | 16:48 | 16:51 | — |
| C4.4 | 14:36 | 14:44 | 14:52 | 9503 |
| C2.3 | 13:01 | 13:09 | 13:28 | 9504 |