Solar flares on September 18, 2002
The most powerful solar flare in 24 hours
C4.8 (normal) flare - September 18 at 7:52 AM
Solar activity index
Value as of the end of the day on September 18, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 17, 2002 to September 18, 2002
Time zone — UTC+05:30 (Ranchi)
List of solar flares for September 18, 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 |
|---|---|---|---|---|
| C3.9 | 22:44 | 22:52 | 22:58 | 105 |
| C2.2 | 21:02 | 21:30 | 22:23 | 119 |
| C3.1 | 15:43 | 16:00 | 16:16 | 119 |
| C4.8 | 07:37 | 07:52 | 08:09 | 119 |
| C3.8 | 06:40 | 06:49 | 06:59 | 112 |
| C2.8 | 05:27 | 05:42 | 05:56 | 119 |
| C4.0 | 02:55 | 03:21 | 03:30 | — |
| C2.5 | 00:49 | 00:59 | 01:08 | 119 |