Solar flares on January 18, 2001
The most powerful solar flare in 24 hours
C2.9 (normal) flare - January 18 at 11:34 AM
Solar activity index
Value as of the end of the day on January 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 17, 2001 to January 18, 2001
Time zone — UTC-05 (Thunder bay)
List of solar flares for January 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 |
|---|---|---|---|---|
| C1.3 | 17:40 | 18:20 | 18:35 | — |
| C2.9 | 10:25 | 11:34 | 12:25 | — |
| C1.0 | 07:52 | 07:56 | 08:05 | — |