Solar flares on December 18, 2001
The most powerful solar flare in 24 hours
C4.8 (normal) flare - December 18 at 1:24 PM
Solar activity index
Value as of the end of the day on December 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 17, 2001 to December 18, 2001
Time zone — UTC+05:30 (Krishnanagar)
List of solar flares for December 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 |
|---|---|---|---|---|
| C4.8 | 13:19 | 13:24 | 13:37 | 9733 |
| C1.6 | 13:02 | 13:06 | 13:12 | — |
| C3.0 | 10:09 | 10:14 | 10:19 | 9733 |