Solar flares on September 17, 2002
The most powerful solar flare in 24 hours
C8.8 (normal) flare - September 17 at 3:21 AM
Solar activity index
Value as of the end of the day on September 17, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 16, 2002 to September 17, 2002
Time zone — UTC-06 (El Paso) — summer time
List of solar flares for September 17, 2002
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.8 | 20:07 | 20:22 | 20:39 | 119 |
| C3.8 | 19:10 | 19:19 | 19:29 | 112 |
| C2.8 | 17:57 | 18:12 | 18:26 | 119 |
| C4.0 | 15:25 | 15:51 | 16:00 | — |
| C2.5 | 13:19 | 13:29 | 13:38 | 119 |
| C2.8 | 11:35 | 11:41 | 11:48 | 119 |
| C4.3 | 04:36 | 04:50 | 04:58 | 119 |
| C8.8 | 03:17 | 03:21 | 03:24 | 119 |
| C8.6 | 00:11 | 02:20 | 03:36 | 114 |