Solar flares on October 18, 2001
The most powerful solar flare in 24 hours
C6.5 (normal) flare - October 18 at 7:19 PM
Solar activity index
Value as of the end of the day on October 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 17, 2001 to October 18, 2001
Time zone — UTC+05:30 (Indore)
List of solar flares for October 18, 2001
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.7 | 21:36 | 21:42 | 21:50 | 9661 |
| C6.5 | 19:16 | 19:19 | 19:22 | 9658 |
| C3.1 | 14:01 | 14:06 | 14:10 | — |
| C3.1 | 10:59 | 11:03 | 11:05 | — |
| C2.3 | 09:53 | 09:56 | 09:59 | — |
| C2.3 | 08:32 | 08:45 | 08:59 | — |
| C2.7 | 07:25 | 07:28 | 07:30 | — |