Solar flares on September 17, 2002
The most powerful solar flare in 24 hours
C8.8 (normal) flare - September 17 at 9:21 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+00
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 |
|---|---|---|---|---|
| C4.0 | 21:25 | 21:51 | 22:00 | — |
| C2.5 | 19:19 | 19:29 | 19:38 | 119 |
| C2.8 | 17:35 | 17:41 | 17:48 | 119 |
| C4.3 | 10:36 | 10:50 | 10:58 | 119 |
| C8.8 | 09:17 | 09:21 | 09:24 | 119 |
| C8.6 | 06:11 | 08:20 | 09:36 | 114 |
| C2.0 | 05:48 | 05:54 | 05:58 | 114 |
| C1.2 | 04:10 | 04:15 | 04:17 | 119 |
| C5.2 | 01:57 | 02:05 | 02:14 | 110 |