| Sunspot number | New regions | Background flux | C | M |
|---|---|---|---|---|
| 43 | 1 | B1.6 | 4 | 2 |
| Region | Start | Maximum | End | |
|---|---|---|---|---|
| - | B9.3 | 01:50 | 01:55 | 01:58 |
| 2615 | B5.9 | 03:33 | 03:40 | 03:44 |
| 2615 | B5.5 | 05:40 | 05:45 | 05:48 |
| 2615 | C7.5 | 07:03 | 07:10 | 07:12 |
| 2615 | B3.8 | 09:53 | 09:57 | 10:02 |
| 2615 | B5.4 | 10:08 | 10:14 | 10:24 |
| 2615 | C2.6 | 12:05 | 12:13 | 12:34 |
| 2615 | B7.8 | 15:47 | 15:56 | 16:06 |
| 2615 | B7.5 | 16:18 | 16:23 | 16:33 |
| 2615 | C1.1 | 16:36 | 16:41 | 16:48 |
| 2615 | M1.0 | 17:19 | 17:23 | 17:26 |
| 2615 | B5.9 | 18:58 | 19:01 | 19:03 |
| 2615 | B3.5 | 20:49 | 20:54 | 21:04 |
| 2615 | B4.4 | 22:34 | 22:44 | 22:51 |
| 2615 | C1.9 | 22:57 | 23:17 | 23:26 |
| 2615 | M1.2 | 23:29 | 23:38 | 23:40 |
| Auroral activity | Minor | Severe |
|---|---|---|
| High latitude | 25% | 20% |
| Middle latitude | 1% | 1% |
| Predicted Kp max | 2 |
| Solar activity | |
|---|---|
| M-class solar flare | 1% |
| X-class solar flare | 1% |
| Moon phase |
|---|
| New Moon |
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| Last X-flare: | 2015/05/05 | X2.7 |
| Last M-flare: | 2017/04/03 | M5.8 |
| Last geomagnetic storm: | 2017/06/16 | Kp5 (G1) |
| Number of spotless days in 2017: | 42 | |
| Last spotless day: | 2017/06/12 | |
