Solar flares on September 26, 2001
The most powerful solar flare in 24 hours
M1.8 (strong) flare - September 26 at 4:58 AM
Solar activity index
Value as of the end of the day on September 26, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 25, 2001 to September 26, 2001
Time zone — UTC+02 (Monaco) — summer time
List of solar flares for September 26, 2001
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.7 | 14:04 | 14:24 | 14:54 | 9636 |
| C3.8 | 10:39 | 10:43 | 10:50 | — |
| C4.0 | 08:39 | 09:09 | 09:23 | 9628 |
| M1.8 | 04:52 | 04:58 | 05:03 | — |