Solar flares on October 1, 2011
The most powerful solar flare in 24 hours
M3.9 (strong) flare - October 1 at 8:50 PM
Solar activity index
Value as of the end of the day on October 1, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 30, 2011 to October 1, 2011
Time zone — UTC-04 (Hamilton (Canada)) — summer time
List of solar flares for October 1, 2011
The total number of solar flares of class C and higher — 5 flares
C class — 3 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 23:10 | 23:49 | 00:13 | 1302 |
| M3.9 | 20:37 | 20:50 | 20:59 | 1305 |
| C1.0 | 08:35 | 08:39 | 08:42 | 1302 |
| M1.2 | 04:56 | 05:59 | 06:17 | 1305 |
| C4.1 | 00:44 | 00:50 | 00:53 | 1302 |