Open Access
Table 1.
Parameters of the asteroid and comet type impactors.
| Physical property | Asteroid | Comet |
|---|---|---|
| Diameter (m) | 1000 | 1000 |
| Density (kg m−3) | 2.6 × 103 | 0.65 × 103 |
| Mass (kg) | 1.36 × 1012 | 3.40 × 1011 |
| vimp (km s−1) | 20 | 40 |
| vesc (m s−1) | 0.625 | 0.301 |
| Pmin (hour) | 2.04657 | 4.09315 |
| vsurf (m s−1) | 0.425687 | 0.212844 |
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