Solar flares on July 18, 2003
The most powerful solar flare in 24 hours
C5.4 (normal) flare - July 18 at 2:05 AM
Solar activity index
Value as of the end of the day on July 18, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 17, 2003 to July 18, 2003
Time zone — UTC+02 (Zagreb) — summer time
List of solar flares for July 18, 2003
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.4 | 21:43 | 21:54 | 22:03 | 412 |
| C4.8 | 20:23 | 20:28 | 20:35 | 410 |
| C1.3 | 15:35 | 15:50 | 15:54 | 412 |
| C1.2 | 09:35 | 09:42 | 09:48 | 410 |
| C2.0 | 06:04 | 06:19 | 06:26 | 410 |
| C5.4 | 02:02 | 02:05 | 02:10 | 410 |
| C5.1 | 01:48 | 01:56 | 02:01 | 410 |