Solar flares on October 19, 2003
The most powerful solar flare in 24 hours
X1.1 (very strong) flare - October 19 at 8:50 AM
Solar activity index
Value as of the end of the day on October 19, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 18, 2003 to October 19, 2003
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for October 19, 2003
The total number of solar flares of class C and higher — 9 flares
C class — 6 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.9 | 22:45 | 23:22 | 23:43 | 484 |
| C1.8 | 21:34 | 21:41 | 21:44 | — |
| C4.9 | 16:54 | 17:08 | 17:29 | 484 |
| C5.1 | 16:06 | 16:24 | 16:26 | 484 |
| C3.8 | 14:45 | 14:49 | 14:53 | 484 |
| M1.0 | 11:21 | 11:26 | 11:30 | 484 |
| X1.1 | 08:29 | 08:50 | 09:04 | 484 |
| C1.6 | 05:31 | 05:35 | 05:38 | — |
| C1.3 | 00:06 | 00:09 | 00:13 | 484 |