Solar flares on October 31, 2003
The most powerful solar flare in 24 hours
M1.1 (strong) flare - October 31 at 12:16 AM
Solar activity index
Value as of the end of the day on October 31, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 30, 2003 to October 31, 2003
Time zone — UTC-06 (Edmonton) — summer time
List of solar flares for October 31, 2003
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.6 | 23:26 | 23:30 | 23:34 | 486 |
| C5.6 | 22:50 | 22:57 | 23:00 | 488 |
| C2.8 | 22:36 | 22:40 | 22:44 | — |
| C3.7 | 22:17 | 22:22 | 22:26 | 486 |
| C4.4 | 17:50 | 18:20 | 18:37 | — |
| C9.5 | 14:50 | 15:11 | 15:41 | 488 |
| C5.1 | 14:14 | 14:39 | 14:49 | 488 |
| C5.3 | 10:44 | 11:06 | 11:48 | 486 |
| C8.5 | 06:24 | 06:31 | 06:35 | — |
| M1.1 | 00:08 | 00:16 | 00:28 | 488 |