Solar flares on September 19, 2001
The most powerful solar flare in 24 hours
C7.5 (normal) flare - September 19 at 9:52 PM
Solar activity index
Value as of the end of the day on September 19, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 18, 2001 to September 19, 2001
Time zone — UTC+03 (Pskov) — summer time
List of solar flares for September 19, 2001
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.5 | 21:45 | 21:52 | 22:00 | 9628 |
| C6.7 | 18:06 | 19:07 | 20:27 | — |
| C6.0 | 11:10 | 11:11 | 11:13 | 9621 |
| C7.2 | 09:59 | 10:21 | 10:57 | — |
| C3.3 | 06:38 | 06:43 | 06:55 | 9628 |