Solar flares on October 25, 2001
The most powerful solar flare in 24 hours
X1.3 (very strong) flare - October 25 at 5:02 PM
Solar activity index
Value as of the end of the day on October 25, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 24, 2001 to October 25, 2001
Time zone — UTC+02 (Monaco) — summer time
List of solar flares for October 25, 2001
The total number of solar flares of class C and higher — 15 flares
C class — 14 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.9 | 23:44 | 23:47 | 23:50 | — |
| C5.9 | 23:34 | 23:37 | 23:42 | — |
| C6.6 | 23:16 | 23:20 | 23:24 | 9678 |
| C4.4 | 22:45 | 22:49 | 22:54 | 9678 |
| C7.5 | 21:19 | 21:23 | 21:31 | 9678 |
| X1.3 | 16:42 | 17:02 | 17:28 | 9672 |
| C2.2 | 15:50 | 15:54 | 15:58 | — |
| C4.3 | 14:20 | 14:37 | 14:50 | 9669 |
| C6.3 | 12:39 | 12:47 | 13:00 | — |
| C5.7 | 09:41 | 09:48 | 09:56 | 9678 |
| C5.4 | 08:24 | 08:30 | 08:39 | 9672 |
| C5.2 | 07:16 | 07:21 | 07:25 | 9672 |
| C4.8 | 05:22 | 05:31 | 05:45 | 9678 |
| C5.3 | 01:59 | 02:03 | 02:06 | 9672 |
| C3.4 | 00:07 | 00:41 | 00:57 | 9680 |