Solar flares on July 17, 2003
The most powerful solar flare in 24 hours
C9.8 (normal) flare - July 17 at 12:23 AM
Solar activity index
Value as of the end of the day on July 17, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 16, 2003 to July 17, 2003
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for July 17, 2003
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 23:35 | 23:42 | 23:48 | 410 |
| C2.0 | 20:04 | 20:19 | 20:26 | 410 |
| C5.4 | 16:02 | 16:05 | 16:10 | 410 |
| C5.1 | 15:48 | 15:56 | 16:01 | 410 |
| C1.3 | 12:10 | 12:13 | 12:17 | — |
| C3.8 | 10:36 | 10:40 | 10:43 | 410 |
| C2.2 | 10:14 | 10:22 | 10:29 | 412 |
| C2.8 | 09:39 | 09:44 | 09:48 | 410 |
| C1.4 | 08:49 | 08:54 | 08:58 | 410 |
| C2.6 | 07:21 | 07:29 | 07:37 | 410 |
| C2.3 | 00:58 | 01:14 | 01:23 | 410 |
| C9.8 | 00:17 | 00:23 | 00:29 | 412 |