Solar flares on July 23, 2001
The most powerful solar flare in 24 hours
C5.0 (normal) flare - July 23 at 2:23 AM
Solar activity index
Value as of the end of the day on July 23, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 22, 2001 to July 23, 2001
Time zone — UTC-04 (Kapuskasing) — summer time
List of solar flares for July 23, 2001
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 |
|---|---|---|---|---|
| C1.8 | 20:06 | 20:11 | 20:14 | — |
| C1.3 | 18:37 | 18:41 | 18:44 | 9543 |
| C1.2 | 17:55 | 17:57 | 18:03 | — |
| C1.0 | 17:03 | 17:07 | 17:09 | — |
| C1.4 | 14:15 | 14:28 | 14:32 | 9543 |
| C1.0 | 13:11 | 13:15 | 13:18 | — |
| C3.9 | 10:22 | 10:26 | 10:28 | — |
| C1.6 | 09:09 | 09:12 | 09:19 | 9545 |
| C5.0 | 02:19 | 02:23 | 02:25 | 9545 |