Solar flares on July 31, 2002
The most powerful solar flare in 24 hours
M1.2 (strong) flare - July 31 at 1:53 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+00
List of solar flares for July 31, 2002
The total number of solar flares of class C and higher — 14 flares
C class — 13 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.7 | 23:28 | 23:55 | 00:12 | — |
| C3.0 | 22:50 | 22:55 | 23:01 | — |
| C2.2 | 22:27 | 22:30 | 22:33 | — |
| C3.3 | 20:18 | 20:22 | 20:25 | — |
| C2.8 | 19:58 | 20:03 | 20:05 | 48 |
| C2.6 | 15:23 | 15:26 | 15:28 | 50 |
| C2.3 | 14:49 | 14:52 | 14:54 | — |
| C2.7 | 12:06 | 12:09 | 12:11 | — |
| C4.2 | 10:57 | 11:17 | 11:30 | 39 |
| C9.6 | 09:50 | 09:58 | 10:06 | — |
| C2.4 | 08:49 | 08:54 | 09:00 | — |
| M1.2 | 01:39 | 01:53 | 02:02 | 39 |
| C3.0 | 01:10 | 01:14 | 01:19 | 38 |
| C4.9 | 00:49 | 00:53 | 00:57 | 44 |