Solar flares on October 28, 2001
The most powerful solar flare in 24 hours
M1.5 (strong) flare - October 28 at 10:00 AM
Solar activity index
Value as of the end of the day on October 28, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 27, 2001 to October 28, 2001
Time zone — UTC+00
List of solar flares for October 28, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 7 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.7 | 17:03 | 17:06 | 17:09 | 9682 |
| M1.4 | 16:45 | 16:51 | 16:53 | 9682 |
| C6.3 | 10:58 | 11:03 | 11:07 | — |
| M1.5 | 09:50 | 10:00 | 10:05 | — |
| C4.8 | 09:17 | 09:21 | 09:25 | — |
| C6.5 | 08:38 | 08:42 | 08:47 | 9682 |
| C6.8 | 06:48 | 07:02 | 07:12 | 9682 |
| M1.3 | 04:36 | 04:50 | 04:58 | 9682 |
| C5.9 | 02:30 | 02:44 | 02:46 | — |
| C3.4 | 00:10 | 00:14 | 00:19 | — |