Solar flares on October 19, 2001
The most powerful solar flare in 24 hours
X1.6 (very strong) flare - October 19 at 6:30 PM
Solar activity index
Value as of the end of the day on October 19, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 18, 2001 to October 19, 2001
Time zone — UTC+02 (Monaco) — summer time
List of solar flares for October 19, 2001
The total number of solar flares of class C and higher — 15 flares
C class — 8 | M class — 5 | X class — 2
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.1 | 22:58 | 23:03 | 23:08 | 9658 |
| X1.6 | 18:13 | 18:30 | 18:43 | 9661 |
| C3.2 | 17:45 | 17:48 | 17:51 | 9671 |
| C3.5 | 16:36 | 16:53 | 17:06 | — |
| C3.8 | 15:36 | 15:40 | 15:44 | 9658 |
| C7.8 | 14:19 | 14:33 | 14:42 | 9672 |
| M5.7 | 11:35 | 11:43 | 11:55 | 9658 |
| C8.9 | 08:56 | 09:00 | 09:04 | 9661 |
| M1.3 | 08:35 | 08:45 | 08:53 | 9658 |
| C4.2 | 07:26 | 07:29 | 07:36 | — |
| M1.0 | 05:14 | 05:16 | 05:18 | — |
| M1.4 | 04:52 | 04:58 | 05:03 | 9671 |
| M1.2 | 04:20 | 04:32 | 04:46 | — |
| X1.6 | 02:47 | 03:05 | 03:13 | 9661 |
| C3.0 | 01:37 | 01:44 | 01:48 | 9661 |