Solar flares on July 15, 2004
The most powerful solar flare in 24 hours
X1.6 (very strong) flare - July 15 at 1:24 PM
Solar activity index
Value as of the end of the day on July 15, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 14, 2004 to July 15, 2004
Time zone — UTC-05 (Chicago) — summer time
List of solar flares for July 15, 2004
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 0 | X class — 2
| Class | begin | max | end | region |
|---|---|---|---|---|
| X1.3 | 20:43 | 21:06 | 21:12 | 649 |
| C7.9 | 17:24 | 17:33 | 17:52 | — |
| C3.9 | 16:25 | 17:01 | 17:18 | 649 |
| X1.6 | 13:15 | 13:24 | 13:28 | 649 |
| C1.4 | 09:51 | 09:56 | 10:04 | 649 |
| C2.5 | 06:11 | 06:16 | 06:19 | 651 |