Solar flares on September 16, 2001
The most powerful solar flare in 24 hours
C8.9 (normal) flare - September 16 at 8:53 AM
Solar activity index
Value as of the end of the day on September 16, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 15, 2001 to September 16, 2001
Time zone — UTC-05 (Springfield) — summer time
List of solar flares for September 16, 2001
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.9 | 21:04 | 21:07 | 21:10 | — |
| C4.1 | 18:47 | 18:50 | 18:55 | 9616 |
| C3.5 | 13:37 | 13:47 | 14:01 | 9616 |
| C4.8 | 12:06 | 12:12 | 12:19 | 9608 |
| C2.94 | 11:44 | 11:48 | 11:52 | 9608 |
| C3.1 | 11:04 | 11:10 | 11:18 | 9608 |
| C8.9 | 08:33 | 08:53 | 09:05 | 9616 |
| C2.8 | 05:20 | 05:49 | 06:05 | — |
| C2.9 | 04:09 | 04:15 | 04:22 | 9608 |
| C4.5 | 02:39 | 02:45 | 02:51 | 9616 |
| C4.5 | 01:15 | 01:20 | 01:24 | 9608 |