Solar flares on August 18, 2003
The most powerful solar flare in 24 hours
C2.4 (normal) flare - August 18 at 5:06 AM
Solar activity index
Value as of the end of the day on August 18, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 17, 2003 to August 18, 2003
Time zone — UTC-04 (Jacksonville) — summer time
List of solar flares for August 18, 2003
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 13:32 | 13:42 | 13:48 | 431 |
| C1.1 | 11:59 | 12:05 | 12:11 | 431 |
| C1.3 | 11:00 | 11:07 | 11:17 | 431 |
| C2.4 | 04:59 | 05:06 | 05:11 | 431 |