Solar flares on October 25, 2001
The most powerful solar flare in 24 hours
X1.3 (very strong) flare - October 25 at 10:02 AM
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-05 (Springfield) — summer time
List of solar flares for October 25, 2001
The total number of solar flares of class C and higher — 17 flares
C class — 16 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.8 | 23:17 | 23:21 | 23:27 | 9678 |
| C4.5 | 20:37 | 20:45 | 21:04 | 9678 |
| C3.8 | 18:42 | 18:48 | 18:54 | 9678 |
| C6.1 | 17:50 | 17:54 | 17:58 | — |
| C5.3 | 17:06 | 17:10 | 17:13 | — |
| C8.9 | 16:44 | 16:47 | 16:50 | — |
| C5.9 | 16:34 | 16:37 | 16:42 | — |
| C6.6 | 16:16 | 16:20 | 16:24 | 9678 |
| C4.4 | 15:45 | 15:49 | 15:54 | 9678 |
| C7.5 | 14:19 | 14:23 | 14:31 | 9678 |
| X1.3 | 09:42 | 10:02 | 10:28 | 9672 |
| C2.2 | 08:50 | 08:54 | 08:58 | — |
| C4.3 | 07:20 | 07:37 | 07:50 | 9669 |
| C6.3 | 05:39 | 05:47 | 06:00 | — |
| C5.7 | 02:41 | 02:48 | 02:56 | 9678 |
| C5.4 | 01:24 | 01:30 | 01:39 | 9672 |
| C5.2 | 00:16 | 00:21 | 00:25 | 9672 |