Solar flares on October 9, 2001
The most powerful solar flare in 24 hours
M1.4 (strong) flare - October 9 at 12:13 PM
Solar activity index
Value as of the end of the day on October 9, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 8, 2001 to October 9, 2001
Time zone — UTC+01 (Dublin) — summer time
List of solar flares for October 9, 2001
The total number of solar flares of class C and higher — 5 flares
C class — 4 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.4 | 23:03 | 23:07 | 23:10 | 9657 |
| C2.0 | 17:06 | 17:18 | 17:27 | — |
| C2.8 | 15:03 | 15:09 | 15:17 | — |
| M1.4 | 11:46 | 12:13 | 12:49 | 9653 |
| C7.0 | 08:24 | 08:41 | 08:50 | 9657 |