Solar flares on October 19, 2003
The most powerful solar flare in 24 hours
X1.1 (very strong) flare - October 19 at 11:50 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-05 (Lincoln) — summer time
List of solar flares for October 19, 2003
The total number of solar flares of class C and higher — 8 flares
C class — 5 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.9 | 19:54 | 20:08 | 20:29 | 484 |
| C5.1 | 19:06 | 19:24 | 19:26 | 484 |
| C3.8 | 17:45 | 17:49 | 17:53 | 484 |
| M1.0 | 14:21 | 14:26 | 14:30 | 484 |
| X1.1 | 11:29 | 11:50 | 12:04 | 484 |
| C1.6 | 08:31 | 08:35 | 08:38 | — |
| C1.3 | 03:06 | 03:09 | 03:13 | 484 |
| M1.9 | 01:08 | 01:26 | 01:41 | 484 |