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Table 5
Results for ice satellites of the Solar System.
| Ganymede | Europa | Callisto | |||||
|---|---|---|---|---|---|---|---|
| Property | Variable | Reference | Model | Reference | Model | Reference | Model |
| Mass (kg) | Mp | 1.483 × 1023 | 4.772 × 1022 | 1.075 × 1023 | |||
| Radius (km) | Rp | 2632.3 (1) | 1562.1 (1) | 2409.3 (1) | |||
| Average density (g cm−3) | ρ | 1.942 ± 0.005 (2) | 2.989 ± 0.005 (2) | 1.834 ± 0.003 (2) | |||
| Normalised moment of inertia factor |  |
0.3115 ± 0.003 (2) | 0.3460 ± 0.005 (2) | 0.3200 (6) | |||
| 600–800 (3) | 469–662 (2) | ||||||
| Core radius (km) | r0 | 501– | 770 | 478 (4) | 621 | 568– 592(2) | 665 |
| 602(4) | 470–640 (5) | ||||||
| Ice-water thickness (km) | Rp – r1 | 800–900 (3) 876–910 (4) | 901 | 136 (4) 125–140 (5) | 121 | – | 880 |
| Ocean thickness (km) | Docean | 24–287 (4) | 130 | 129–134 (2) 133–136 (4) | 119 | 20–132 (2) | 120 |
| Core mean density (g cm−3) | P0 | 6.6–7.4 (3) | 6.59 | 6.3–7.0 (3) | 6.19 | – | 6.22 |
| Core mass fraction | CMF | 0.04–0.10 | 0.085 | 0.05–0.13 (3) | 0.13 | 0.05–0.06 (2) | 0.07 |
| Mantle mean density (g cm−3) | ρ1 | 3.51 (4) | 3.44 | 3.425 (4) | 3.26 | 3.53 (4) | 3.27 |
| Mantle mass fraction | MMF | 0.47 | 0.46 | 0.84 | 0.79 | – | 0.42 |
| Ice mean density (g cm−3) | ρ2 | 1.22 | 1.23 | 1.12 | 1.14 | – | 1.26 |
| Ice mass fraction | IMF | 0.45 | 0.455 | 0.09 | 0.08 | – | 0.51 |
| Planet mass error | 0.014% | 0.026% | 0.008% | ||||
| Average density error | 0.001% | 0.001% | 0.001% | ||||
| Moment of inertia error | 0.032% | 0.003% | 0.004% | ||||
References: (1) Seidelmann et al. (2007); (2) Schubert et al. (2004); (3) Kuskov & Belashchenko (2016); (4) Vance et al. (2018); (5) Kuskov & Kronrod (2005); (6) Gao & Stevenson (2013).
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