Solar flares on October 4, 2002
The most powerful solar flare in 24 hours
M3.5 (strong) flare - October 4 at 5:05 AM
Solar activity index
Value as of the end of the day on October 4, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 3, 2002 to October 4, 2002
Time zone — UTC-06 (Edmonton) — summer time
List of solar flares for October 4, 2002
The total number of solar flares of class C and higher — 7 flares
C class — 6 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.2 | 23:19 | 23:22 | 23:28 | — |
| C2.8 | 20:34 | 20:38 | 20:42 | 137 |
| C3.2 | 06:00 | 06:03 | 06:07 | — |
| M3.5 | 04:54 | 05:05 | 05:09 | 137 |
| C6.2 | 04:19 | 04:31 | 04:46 | 139 |
| C8.0 | 02:56 | 03:11 | 03:18 | 137 |
| C2.0 | 02:42 | 02:46 | 02:48 | 139 |