Solar flares on September 28, 2015
The most powerful solar flare in 24 hours
M7.6 (strong) flare - September 28 at 8:58 AM
Solar activity index
Value as of the end of the day on September 28, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 27, 2015 to September 28, 2015
Time zone — UTC-06 (Fort Smith) — summer time
List of solar flares for September 28, 2015
The total number of solar flares of class C and higher — 22 flares
C class — 14 | M class — 8 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.0 | 23:53 | 23:56 | 00:04 | 2422 |
| M1.2 | 23:33 | 23:37 | 23:39 | 2423 |
| M2.9 | 23:05 | 23:16 | 23:23 | 2422 |
| C5.1 | 22:41 | 22:46 | 22:55 | 2428 |
| M1.1 | 21:41 | 21:43 | 21:53 | 2422 |
| M1.2 | 21:11 | 21:16 | 21:31 | 2423 |
| C2.4 | 18:44 | 18:52 | 18:56 | 2422 |
| C2.0 | 17:41 | 17:45 | 17:47 | 2422 |
| C2.4 | 16:28 | 16:32 | 16:37 | — |
| C4.3 | 15:39 | 15:44 | 15:57 | 2422 |
| C7.6 | 14:15 | 14:21 | 14:40 | 2423 |
| C2.8 | 11:08 | 11:11 | 11:14 | 2422 |
| C3.4 | 10:42 | 10:45 | 10:47 | 2422 |
| M7.6 | 08:53 | 08:58 | 09:03 | 2422 |
| C9.8 | 08:12 | 08:33 | 08:45 | 2422 |
| M1.1 | 07:01 | 07:18 | 07:29 | 2422 |
| C5.4 | 06:30 | 06:36 | 06:49 | — |
| C8.1 | 05:52 | 05:57 | 06:00 | — |
| C8.5 | 05:21 | 05:32 | 05:50 | 2422 |
| C3.7 | 02:47 | 03:04 | 03:12 | 2423 |
| M1.1 | 01:27 | 01:35 | 01:46 | 2422 |
| C4.5 | 00:21 | 00:54 | 01:08 | 2423 |