Solar flares on September 4, 2002
The most powerful solar flare in 24 hours
C2.5 (normal) flare - September 4 at 4:54 PM
Solar activity index
Value as of the end of the day on September 4, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 3, 2002 to September 4, 2002
Time zone — UTC+02 (Bern) — summer time
List of solar flares for September 4, 2002
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 20:04 | 20:07 | 20:10 | — |
| C1.2 | 19:00 | 19:03 | 19:08 | 95 |
| C1.6 | 17:28 | 17:31 | 17:34 | 95 |
| C2.5 | 16:48 | 16:54 | 16:57 | 96 |
| C1.2 | 16:14 | 16:17 | 16:22 | 94 |
| C1.6 | 15:50 | 15:55 | 15:57 | 96 |
| C1.6 | 12:27 | 12:33 | 12:38 | 96 |
| C2.0 | 09:40 | 09:43 | 09:46 | — |