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Table 1
Physical parameters of the nuclei at the beginning of the computation.
| Parameter | 67PCG | 46PW |
|
|
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| Orbital | ||
| Semimajor axis (AU) | 3.511 | 3.099 |
| Eccentricity | 0.632 | 0.657 |
| Radius (km) | 2a | 0.7b |
| Rotational period (h) | 12.3a | 6 |
| Latitude θ of the area (°) | 0 & 75 | |
| Molecular composition | ||
| Jx (volatile X/H2O molar ratio): | ||
| JCO in pores (in amorphous ice) | 11% (4%) | |
| JCO2 in pores (in amorphous ice) | 2.5% (2.5%) | |
| JCH4 in pores (in amorphous ice) | 1.5% (0.5%) | |
| JH2S in pores (in amorphous ice) | 1% (1%) | |
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