Solar flares on October 20, 2003
The most powerful solar flare in 24 hours
M1.9 (strong) flare - October 20 at 1:22 PM
Solar activity index
Value as of the end of the day on October 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 19, 2003 to October 20, 2003
Time zone — UTC+06 (Omsk)
List of solar flares for October 20, 2003
The total number of solar flares of class C and higher — 8 flares
C class — 6 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.2 | 21:51 | 21:55 | 21:58 | 484 |
| C3.3 | 20:45 | 20:49 | 20:52 | 484 |
| M1.9 | 12:45 | 13:22 | 13:43 | 484 |
| C1.8 | 11:34 | 11:41 | 11:44 | — |
| C4.9 | 06:54 | 07:08 | 07:29 | 484 |
| C5.1 | 06:06 | 06:24 | 06:26 | 484 |
| C3.8 | 04:45 | 04:49 | 04:53 | 484 |
| M1.0 | 01:21 | 01:26 | 01:30 | 484 |