Solar flares on July 20, 2003
The most powerful solar flare in 24 hours
C5.6 (normal) flare - July 20 at 11:08 AM
Solar activity index
Value as of the end of the day on July 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 19, 2003 to July 20, 2003
Time zone — UTC-05 (Winnipeg) — summer time
List of solar flares for July 20, 2003
The total number of solar flares of class C and higher — 25 flares
C class — 25 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 22:39 | 22:47 | 22:53 | — |
| C1.4 | 22:19 | 22:28 | 22:36 | — |
| C3.3 | 21:19 | 21:28 | 21:34 | 410 |
| C1.3 | 20:50 | 20:55 | 20:58 | — |
| C1.5 | 20:18 | 20:24 | 20:37 | — |
| C1.2 | 20:09 | 20:12 | 20:15 | — |
| C3.2 | 19:28 | 19:35 | 19:41 | 410 |
| C1.8 | 19:04 | 19:08 | 19:21 | 417 |
| C1.6 | 18:37 | 18:41 | 18:44 | — |
| C2.7 | 16:03 | 16:08 | 16:14 | 410 |
| C4.4 | 14:04 | 14:11 | 14:25 | 410 |
| C3.1 | 13:06 | 13:11 | 13:17 | — |
| C3.6 | 12:53 | 12:58 | 13:01 | 410 |
| C3.9 | 12:22 | 12:26 | 12:36 | 410 |
| C3.7 | 11:41 | 11:47 | 11:53 | 410 |
| C5.6 | 11:01 | 11:08 | 11:19 | 410 |
| C1.8 | 10:49 | 10:54 | 10:57 | 410 |
| C3.7 | 09:48 | 09:52 | 09:54 | 410 |
| C2.1 | 07:00 | 07:06 | 07:23 | — |
| C1.7 | 06:52 | 06:55 | 06:57 | — |
| C2.4 | 04:45 | 05:02 | 05:08 | — |
| C2.0 | 03:33 | 03:36 | 03:38 | 417 |
| C2.5 | 03:19 | 03:23 | 03:28 | — |
| C1.4 | 01:19 | 01:25 | 01:35 | — |
| C1.2 | 00:18 | 00:23 | 00:26 | — |