Solar flares on May 18, 2001
The most powerful solar flare in 24 hours
C9.1 (normal) flare - May 18 at 2:19 AM
Solar activity index
Value as of the end of the day on May 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 17, 2001 to May 18, 2001
Time zone — UTC+05:30 (Kankuria)
List of solar flares for May 18, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.5 | 21:09 | 21:19 | 21:23 | — |
| C2.4 | 20:24 | 20:31 | 20:39 | — |
| C6.4 | 11:59 | 12:10 | 12:26 | — |
| C1.2 | 08:05 | 08:08 | 08:10 | — |
| C2.2 | 07:45 | 07:49 | 07:52 | — |
| C2.2 | 04:47 | 04:54 | 05:04 | 9461 |
| C4.0 | 03:06 | 03:12 | 03:43 | 9461 |
| C9.1 | 02:11 | 02:19 | 02:29 | 9454 |
| C7.0 | 01:06 | 01:26 | 01:34 | 9454 |