Solar flares on September 28, 2001
The most powerful solar flare in 24 hours
M3.3 (strong) flare - September 28 at 11:30 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 (Simferopol)
List of solar flares for September 28, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 6 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.0 | 22:18 | 22:26 | 23:05 | 9637 |
| C8.4 | 20:51 | 21:42 | 21:51 | 9634 |
| C7.2 | 20:51 | 21:25 | 21:31 | 9628 |
| C6.3 | 19:58 | 20:17 | 20:22 | 9628 |
| M2.4 | 12:34 | 13:14 | 13:50 | 9628 |
| M3.3 | 11:10 | 11:30 | 12:10 | 9636 |
| C2.9 | 09:35 | 09:46 | 09:52 | 9635 |
| C3.5 | 07:15 | 07:25 | 07:38 | 9628 |
| C7.5 | 05:01 | 05:07 | 05:15 | 9637 |