Solar flares on July 31, 2002
The most powerful solar flare in 24 hours
C9.6 (normal) flare - July 31 at 2:58 AM
Solar activity index
Value as of the end of the day on July 31, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 30, 2002 to July 31, 2002
Time zone — UTC-07 (Seattle) — summer time
List of solar flares for July 31, 2002
The total number of solar flares of class C and higher — 17 flares
C class — 17 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 23:23 | 23:31 | 23:45 | 44 |
| C5.0 | 22:01 | 22:20 | 22:26 | 50 |
| C2.5 | 20:44 | 21:03 | 21:09 | 0 |
| C2.6 | 19:39 | 19:42 | 19:47 | 44 |
| C2.5 | 19:21 | 19:26 | 19:36 | 50 |
| C3.9 | 17:28 | 17:44 | 17:54 | — |
| C4.7 | 16:28 | 16:55 | 17:12 | — |
| C3.0 | 15:50 | 15:55 | 16:01 | — |
| C2.2 | 15:27 | 15:30 | 15:33 | — |
| C3.3 | 13:18 | 13:22 | 13:25 | — |
| C2.8 | 12:58 | 13:03 | 13:05 | 48 |
| C2.6 | 08:23 | 08:26 | 08:28 | 50 |
| C2.3 | 07:49 | 07:52 | 07:54 | — |
| C2.7 | 05:06 | 05:09 | 05:11 | — |
| C4.2 | 03:57 | 04:17 | 04:30 | 39 |
| C9.6 | 02:50 | 02:58 | 03:06 | — |
| C2.4 | 01:49 | 01:54 | 02:00 | — |