Solar flares on October 1, 2015
The most powerful solar flare in 24 hours
M5.5 (strong) flare - October 1 at 8:13 PM
Solar activity index
Value as of the end of the day on October 1, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 30, 2015 to October 1, 2015
Time zone — UTC-04 (Raleigh) — summer time
List of solar flares for October 1, 2015
The total number of solar flares of class C and higher — 9 flares
C class — 7 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 22:28 | 22:31 | 22:36 | 2422 |
| C1.9 | 21:26 | 21:29 | 21:31 | 2422 |
| M5.5 | 20:06 | 20:13 | 20:17 | 2422 |
| C3.7 | 17:10 | 17:24 | 17:47 | 2422 |
| C1.6 | 13:20 | 13:32 | 13:50 | — |
| M4.5 | 09:03 | 09:10 | 09:14 | 2422 |
| C7.6 | 04:15 | 05:34 | 05:56 | — |
| C3.5 | 04:32 | 04:35 | 04:38 | 2422 |
| C1.6 | 01:39 | 01:53 | 02:16 | 2423 |