Solar flares on October 31, 2003
The most powerful solar flare in 24 hours
C9.5 (normal) flare - October 31 at 1:11 PM
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-08 (Anchorage) — summer time
List of solar flares for October 31, 2003
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 |
|---|---|---|---|---|
| C3.6 | 21:26 | 21:30 | 21:34 | 486 |
| C5.6 | 20:50 | 20:57 | 21:00 | 488 |
| C2.8 | 20:36 | 20:40 | 20:44 | — |
| C3.7 | 20:17 | 20:22 | 20:26 | 486 |
| C4.4 | 15:50 | 16:20 | 16:37 | — |
| C9.5 | 12:50 | 13:11 | 13:41 | 488 |
| C5.1 | 12:14 | 12:39 | 12:49 | 488 |
| C5.3 | 08:44 | 09:06 | 09:48 | 486 |
| C8.5 | 04:24 | 04:31 | 04:35 | — |