Solar flares on November 18, 2001
The most powerful solar flare in 24 hours
C7.4 (normal) flare - November 18 at 4:19 AM
Solar activity index
Value as of the end of the day on November 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 17, 2001 to November 18, 2001
Time zone — UTC-05 (Augusta)
List of solar flares for November 18, 2001
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.3 | 04:37 | 05:01 | 05:25 | — |
| C7.4 | 04:14 | 04:19 | 04:24 | 9704 |