Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 12403
C62
M9
X0
LargestM5.62015-08-24
Span9 days
Flares by day
6
6
12
3
14
10
5
6
9
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2015-08-20 | 05:08 | 05:26 | 81 | C3.4 | S17E47 | 12403 |
| 2015-08-20 | 07:07 | 07:10 | 6 | C1.7 | S18E49 | 12403 |
| 2015-08-20 | 08:03 | 08:06 | 9 | C1.6 | S15E48 | 12403 |
| 2015-08-20 | 14:25 | 15:59 | 114 | C1.1 | S13E45 | 12403 |
| 2015-08-20 | 21:34 | 21:38 | 11 | C1.3 | S14E39 | 12403 |
| 2015-08-20 | 23:30 | 23:41 | 14 | C1.1 | S13E38 | 12403 |
| 2015-08-21 | 01:56 | 02:18 | 41 | M1.2 | S16E39 | 12403 |
| 2015-08-21 | 08:19 | 08:25 | 11 | C1.2 | S14E34 | 12403 |
| 2015-08-21 | 09:34 | 09:48 | 33 | M1.4 | S16E27 | 12403 |
| 2015-08-21 | 14:33 | 14:37 | 10 | C1.2 | S09E30 | 12403 |
| 2015-08-21 | 19:10 | 20:34 | 100 | M1.1 | S12E26 | 12403 |
| 2015-08-21 | 23:34 | 23:46 | 19 | C1.3 | S15E24 | 12403 |
| 2015-08-22 | 00:23 | 00:26 | 6 | C2.0 | S15E22 | 12403 |
| 2015-08-22 | 06:27 | 06:33 | 10 | C5.1 | S16E23 | 12403 |
| 2015-08-22 | 06:39 | 06:49 | 20 | M1.2 | S16E23 | 12403 |
| 2015-08-22 | 08:34 | 08:43 | 14 | C6.7 | S15E18 | 12403 |
| 2015-08-22 | 09:09 | 09:21 | 30 | C5.1 | S15E18 | 12403 |
| 2015-08-22 | 10:21 | 10:25 | 10 | C6.3 | S14E19 | 12403 |
| 2015-08-22 | 11:17 | 11:34 | 30 | C3.4 | S15E18 | 12403 |
| 2015-08-22 | 14:22 | 14:31 | 16 | C2.2 | S15E19 | 12403 |
| 2015-08-22 | 15:19 | 15:29 | 12 | C1.6 | S15E19 | 12403 |
| 2015-08-22 | 16:18 | 16:30 | 19 | C1.6 | S15E16 | 12403 |
| 2015-08-22 | 21:19 | 21:24 | 9 | M3.5 | S15E15 | 12403 |
| 2015-08-22 | 22:34 | 22:37 | 6 | C1.5 | S15E15 | 12403 |
| 2015-08-23 | 07:00 | 07:14 | 23 | C6.6 | S15E09 | 12403 |
| 2015-08-23 | 08:54 | 09:00 | 9 | C2.5 | S15E09 | 12403 |
| 2015-08-23 | 11:15 | 11:21 | 11 | C1.7 | S16E09 | 12403 |
| 2015-08-24 | 06:11 | 06:15 | 13 | C3.2 | S16W02 | 12403 |
| 2015-08-24 | 06:37 | 06:40 | 6 | C1.3 | S14W05 | 12403 |
| 2015-08-24 | 07:08 | 07:12 | 7 | C6.7 | S15W04 | 12403 |
| 2015-08-24 | 07:26 | 07:33 | 9 | M5.6 | S15W04 | 12403 |
| 2015-08-24 | 08:05 | 08:08 | 6 | C2.8 | S14W08 | 12403 |
| 2015-08-24 | 09:52 | 09:58 | 9 | C1.5 | S15W04 | 12403 |
| 2015-08-24 | 10:15 | 10:19 | 6 | C1.7 | S15W05 | 12403 |
| 2015-08-24 | 10:33 | 10:37 | 6 | C1.1 | S14W10 | 12403 |
| 2015-08-24 | 11:59 | 12:06 | 10 | C2.5 | S14W07 | 12403 |
| 2015-08-24 | 13:21 | 13:25 | 9 | C1.6 | S15W07 | 12403 |
| 2015-08-24 | 13:47 | 13:56 | 12 | C2.1 | S15W08 | 12403 |
| 2015-08-24 | 15:08 | 15:13 | 8 | C5.8 | S15W09 | 12403 |
| 2015-08-24 | 19:49 | 19:53 | 8 | C1.2 | S14W01 | 12403 |
| 2015-08-24 | 22:06 | 22:11 | 9 | C1.4 | S14W11 | 12403 |
| 2015-08-25 | 02:35 | 02:42 | 12 | C3.6 | S16W09 | 12403 |
| 2015-08-25 | 04:14 | 04:20 | 10 | C1.1 | S15W21 | 12403 |
| 2015-08-25 | 06:18 | 06:31 | 19 | C4.3 | S14W21 | 12403 |
| 2015-08-25 | 07:58 | 08:03 | 7 | C2.3 | S17W14 | 12403 |
| 2015-08-25 | 10:23 | 10:34 | 18 | C1.7 | S16W15 | 12403 |
| 2015-08-25 | 11:55 | 11:59 | 8 | C2.3 | S18W17 | 12403 |
| 2015-08-25 | 12:33 | 12:38 | 11 | C1.3 | S15W25 | 12403 |
| 2015-08-25 | 14:48 | 14:53 | 10 | C1.1 | S15W27 | 12403 |
| 2015-08-25 | 18:01 | 18:05 | 7 | C1.3 | S11W26 | 12403 |
| 2015-08-25 | 19:23 | 19:27 | 8 | C2.2 | S14W28 | 12403 |
| 2015-08-26 | 02:56 | 03:01 | 8 | C1.5 | S21W27 | 12403 |
| 2015-08-26 | 13:41 | 13:53 | 39 | C9.5 | S16W38 | 12403 |
| 2015-08-26 | 14:51 | 15:07 | 22 | C5.0 | S17W40 | 12403 |
| 2015-08-26 | 19:20 | 19:22 | 4 | C1.7 | S14W44 | 12403 |
| 2015-08-26 | 19:32 | 19:43 | 18 | C1.7 | S09W50 | 12403 |
| 2015-08-27 | 02:33 | 02:42 | 12 | C1.0 | S12W49 | 12403 |
| 2015-08-27 | 03:25 | 03:29 | 11 | C1.3 | S14W49 | 12403 |
| 2015-08-27 | 03:38 | 03:41 | 6 | C1.0 | S14W49 | 12403 |
| 2015-08-27 | 04:41 | 05:02 | 32 | C2.5 | S16W47 | 12403 |
| 2015-08-27 | 04:48 | 05:44 | 75 | M2.9 | S16W47 | 12403 |
| 2015-08-27 | 20:24 | 20:31 | 10 | C1.4 | S14W57 | 12403 |
| 2015-08-28 | 02:42 | 02:51 | 24 | C8.0 | S13W59 | 12403 |
| 2015-08-28 | 08:13 | 08:19 | 18 | C3.7 | S14W63 | 12403 |
| 2015-08-28 | 13:04 | 13:16 | 19 | M2.2 | S14W65 | 12403 |
| 2015-08-28 | 15:35 | 15:39 | 8 | C1.2 | S14W65 | 12403 |
| 2015-08-28 | 15:50 | 15:53 | 5 | C1.5 | S14W66 | 12403 |
| 2015-08-28 | 18:36 | 18:44 | 19 | C1.1 | S13W70 | 12403 |
| 2015-08-28 | 18:56 | 19:03 | 10 | M2.1 | S13W70 | 12403 |
| 2015-08-28 | 19:30 | 19:39 | 12 | C4.6 | S13W70 | 12403 |
| 2015-08-28 | 23:39 | 23:47 | 18 | C4.8 | S14W75 | 12403 |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
About this page
NOAA active region 12403 produced 71 C+ flares between 2015-08-20 and 2015-08-28.