Solar flares on October 28, 2001
The most powerful solar flare in 24 hours
M1.5 (strong) flare - October 28 at 3:00 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-07 (Kamloops) — summer time
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 |
|---|---|---|---|---|
| C2.5 | 20:11 | 20:14 | 20:18 | — |
| M1.3 | 18:52 | 18:59 | 19:07 | — |
| C2.8 | 17:40 | 17:44 | 17:49 | 9682 |
| C3.7 | 10:03 | 10:06 | 10:09 | 9682 |
| M1.4 | 09:45 | 09:51 | 09:53 | 9682 |
| C6.3 | 03:58 | 04:03 | 04:07 | — |
| M1.5 | 02:50 | 03:00 | 03:05 | — |
| C4.8 | 02:17 | 02:21 | 02:25 | — |
| C6.5 | 01:38 | 01:42 | 01:47 | 9682 |
| C6.8 | 23:48 | 00:02 | 00:12 | 9682 |