Solar flares on September 28, 2001
The most powerful solar flare in 24 hours
M3.3 (strong) flare - September 28 at 6:00 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-02:30 (Saint john's) — 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 | 21:25 | 21:40 | 21:51 | 9628 |
| M1.2 | 18:45 | 18:55 | 19:04 | 9634 |
| M1.0 | 16:48 | 16:56 | 17:35 | 9637 |
| C8.4 | 15:21 | 16:12 | 16:21 | 9634 |
| C7.2 | 15:21 | 15:55 | 16:01 | 9628 |
| C6.3 | 14:28 | 14:47 | 14:52 | 9628 |
| M2.4 | 07:04 | 07:44 | 08:20 | 9628 |
| M3.3 | 05:40 | 06:00 | 06:40 | 9636 |
| C2.9 | 04:05 | 04:16 | 04:22 | 9635 |
| C3.5 | 01:45 | 01:55 | 02:08 | 9628 |