Solar flares on October 18, 2003
The most powerful solar flare in 24 hours
C3.3 (normal) flare - October 18 at 6:00 PM
Solar activity index
Value as of the end of the day on October 18, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 17, 2003 to October 18, 2003
Time zone — UTC+09 (Neryungri)
List of solar flares for October 18, 2003
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 |
|---|---|---|---|---|
| C3.3 | 17:49 | 18:00 | 18:04 | 484 |
| C2.0 | 14:31 | 14:38 | 14:40 | 484 |