Solar flares on September 17, 2002
The most powerful solar flare in 24 hours
C8.8 (normal) flare - September 17 at 11:21 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+02 (Bern) — summer time
List of solar flares for September 17, 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 |
|---|---|---|---|---|
| C4.0 | 23:25 | 23:51 | 00:00 | — |
| C2.5 | 21:19 | 21:29 | 21:38 | 119 |
| C2.8 | 19:35 | 19:41 | 19:48 | 119 |
| C4.3 | 12:36 | 12:50 | 12:58 | 119 |
| C8.8 | 11:17 | 11:21 | 11:24 | 119 |
| C8.6 | 08:11 | 10:20 | 11:36 | 114 |
| C2.0 | 07:48 | 07:54 | 07:58 | 114 |
| C1.2 | 06:10 | 06:15 | 06:17 | 119 |
| C5.2 | 03:57 | 04:05 | 04:14 | 110 |
| C2.7 | 23:56 | 00:00 | 00:02 | — |