Solar flares on October 17, 2001
The most powerful solar flare in 24 hours
M1.1 (strong) flare - October 17 at 5:23 AM
Solar activity index
Value as of the end of the day on October 17, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 16, 2001 to October 17, 2001
Time zone — UTC-06 (Red deer) — summer time
List of solar flares for October 17, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.1 | 23:29 | 23:33 | 23:35 | — |
| C2.3 | 22:23 | 22:26 | 22:29 | — |
| C2.3 | 21:02 | 21:15 | 21:29 | — |
| C2.7 | 19:55 | 19:58 | 20:00 | — |
| C2.5 | 11:17 | 11:21 | 11:24 | 9661 |
| C3.9 | 10:13 | 10:21 | 10:34 | 9659 |
| M1.1 | 05:16 | 05:23 | 05:28 | 9658 |
| C2.51 | 03:30 | 03:43 | 03:56 | — |
| C2.33 | 02:35 | 02:47 | 02:50 | — |
| C3.5 | 01:14 | 01:21 | 01:30 | 9661 |