Solar flares on October 4, 2003
The most powerful solar flare in 24 hours
M1.0 (strong) flare - October 4 at 11:47 PM
Solar activity index
Value as of the end of the day on October 4, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 3, 2003 to October 4, 2003
Time zone — UTC+08 (Irkutsk)
List of solar flares for October 4, 2003
The total number of solar flares of class C and higher — 5 flares
C class — 4 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.0 | 23:42 | 23:47 | 23:49 | 471 |
| C1.7 | 23:15 | 23:23 | 23:30 | 471 |
| C2.5 | 21:09 | 21:17 | 21:41 | — |
| C1.7 | 12:54 | 13:01 | 13:07 | — |
| C2.7 | 07:01 | 07:14 | 07:28 | — |