Solar flares on September 28, 2001
The most powerful solar flare in 24 hours
M3.3 (strong) flare - September 28 at 5:30 AM
Solar activity index
Value as of the end of the day on September 28, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 27, 2001 to September 28, 2001
Time zone — UTC-03 (Halifax) — summer time
List of solar flares for September 28, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 6 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.6 | 20:55 | 21:10 | 21:21 | 9628 |
| M1.2 | 18:15 | 18:25 | 18:34 | 9634 |
| M1.0 | 16:18 | 16:26 | 17:05 | 9637 |
| C8.4 | 14:51 | 15:42 | 15:51 | 9634 |
| C7.2 | 14:51 | 15:25 | 15:31 | 9628 |
| C6.3 | 13:58 | 14:17 | 14:22 | 9628 |
| M2.4 | 06:34 | 07:14 | 07:50 | 9628 |
| M3.3 | 05:10 | 05:30 | 06:10 | 9636 |
| C2.9 | 03:35 | 03:46 | 03:52 | 9635 |
| C3.5 | 01:15 | 01:25 | 01:38 | 9628 |