Solar flares on June 20, 2001
The most powerful solar flare in 24 hours
C4.4 (normal) flare - June 20 at 9:44 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+01 (London) — summer time
List of solar flares for June 20, 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 |
|---|---|---|---|---|
| C2.1 | 23:44 | 23:48 | 23:51 | — |
| C4.4 | 21:36 | 21:44 | 21:52 | 9503 |
| C2.3 | 20:01 | 20:09 | 20:28 | 9504 |
| C4.2 | 00:10 | 00:26 | 01:19 | 9501 |