Solar flares on April 18, 2001
The most powerful solar flare in 24 hours
C2.2 (normal) flare - April 18 at 4:14 AM
Solar activity index
Value as of the end of the day on April 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2001 to April 18, 2001
Time zone — UTC+02 (Bern) — summer time
List of solar flares for April 18, 2001
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 20:13 | 20:21 | 20:27 | — |
| C1.9 | 08:04 | 08:11 | 08:16 | — |
| C2.2 | 04:11 | 04:14 | 04:16 | — |