Solar flares on July 23, 2003
The most powerful solar flare in 24 hours
C3.9 (normal) flare - July 23 at 1:57 AM
Solar activity index
Value as of the end of the day on July 23, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 22, 2003 to July 23, 2003
Time zone — UTC-04 (Fermont) — summer time
List of solar flares for July 23, 2003
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 22:29 | 22:49 | 23:05 | 417 |
| C1.4 | 21:19 | 21:23 | 21:40 | — |
| C1.8 | 13:14 | 13:49 | 14:06 | 417 |
| C2.2 | 11:24 | 11:30 | 11:44 | 417 |
| C2.3 | 07:28 | 07:37 | 07:46 | 417 |
| C1.0 | 05:19 | 05:23 | 05:28 | 419 |
| C3.9 | 01:46 | 01:57 | 02:03 | 417 |
| C1.9 | 00:30 | 00:35 | 00:41 | 417 |
| C1.5 | 00:09 | 00:13 | 00:16 | 409 |