Viewing archive of Thursday, 18 April 2002
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 160 23 | 2 2 | C1.3 | C9.46 | 6 |
Solar flares
| Region | Start | Maximum | End | |
|---|---|---|---|---|
| - | C4.0 | 03:35 | 03:46 | 03:54 |
| - | C1.8 | 05:27 | 05:30 | 05:33 |
| - | C9.4 | 06:36 | 07:02 | 07:29 |
| - | C2.6 | 10:44 | 10:48 | 10:51 |
| 9907 | C1.5 | 14:30 | 14:33 | 14:35 |
| 9905 | C3.0 | 15:12 | 16:12 | 16:57 |
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Coronal hole faces Earth
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Space weather facts
| Last X-flare: | 2017/09/10 | X8.2 |
| Last M-flare: | 2017/10/20 | M1.0 |
| Last geomagnetic storm: | 2019/09/02 | Kp5 (G1) |
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