Solar flares on October 17, 2001
The most powerful solar flare in 24 hours
M1.1 (strong) flare - October 17 at 11:23 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+00
List of solar flares for October 17, 2001
The total number of solar flares of class C and higher — 6 flares
C class — 5 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.5 | 17:17 | 17:21 | 17:24 | 9661 |
| C3.9 | 16:13 | 16:21 | 16:34 | 9659 |
| M1.1 | 11:16 | 11:23 | 11:28 | 9658 |
| C2.51 | 09:30 | 09:43 | 09:56 | — |
| C2.33 | 08:35 | 08:47 | 08:50 | — |
| C3.5 | 07:14 | 07:21 | 07:30 | 9661 |