Open Access
Table 1
Percentage likelihood of Earth-directed CME (total of 261) causing a geomagnetic storm, based on 500 km/s bins of LASCO speed estimates.
| V km/s | Kp > 6− | Kp > 7− | Kp > 8− | Kp > 9o |
|---|---|---|---|---|
| <500 | 38 | 22 | 4 | |
| 500–1000 | 35 | 18 | 7 | |
| 1000–1500 | 29 | 23 | 8 | |
| 1500–2000 | 44 | 24 | 16 | 4 |
| 2000–2500 | 58 | 50 | 33 | 17 |
| 2500–3000 | 75 | 50 | 0 |
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