Solar flares on August 11, 2002
The most powerful solar flare in 24 hours
C9.5 (normal) flare - August 11 at 7:47 AM
Solar activity index
Value as of the end of the day on August 11, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 10, 2002 to August 11, 2002
Time zone — UTC-04 (Providence) — summer time
List of solar flares for August 11, 2002
The total number of solar flares of class C and higher — 13 flares
C class — 13 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 22:16 | 22:19 | 22:23 | — |
| C3.3 | 18:10 | 18:22 | 18:31 | — |
| C3.6 | 17:22 | 17:26 | 17:29 | 58 |
| C1.7 | 16:22 | 16:26 | 16:29 | — |
| C7.9 | 13:35 | 14:01 | 14:13 | — |
| C3.0 | 12:45 | 12:49 | 12:51 | — |
| C2.3 | 10:39 | 10:50 | 11:10 | 61 |
| C2.3 | 10:07 | 10:13 | 10:20 | 69 |
| C1.9 | 09:50 | 09:57 | 10:03 | — |
| C2.2 | 09:30 | 09:34 | 09:41 | 66 |
| C9.5 | 07:37 | 07:47 | 07:58 | — |
| C1.8 | 05:23 | 05:28 | 05:32 | — |
| C1.5 | 04:55 | 04:59 | 05:07 | — |