Solar flares on September 4, 2002
The most powerful solar flare in 24 hours
C2.5 (normal) flare - September 4 at 10:54 AM
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-04 (Providence) — summer time
List of solar flares for September 4, 2002
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 22:25 | 22:29 | 22:36 | — |
| C1.2 | 20:06 | 20:15 | 20:22 | 95 |
| C1.1 | 14:04 | 14:07 | 14:10 | — |
| C1.2 | 13:00 | 13:03 | 13:08 | 95 |
| C1.6 | 11:28 | 11:31 | 11:34 | 95 |
| C2.5 | 10:48 | 10:54 | 10:57 | 96 |
| C1.2 | 10:14 | 10:17 | 10:22 | 94 |
| C1.6 | 09:50 | 09:55 | 09:57 | 96 |
| C1.6 | 06:27 | 06:33 | 06:38 | 96 |
| C2.0 | 03:40 | 03:43 | 03:46 | — |