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Table 3
Parameters used to explore the validity of the 42:43 CER and CIR models: Neptune’s physical properties from Jacobson (2009) and the orbital inclination and eccentricity of Galatea derived by Showalter et al. (2019).
| Neptune’s properties | |
|---|---|
| GM | 6 835 099.5 km3 s−2 |
| R | 25 225 km |
| J2 | 3408.43 × 10−6 |
| J4 | − 33.40 × 10−6 |
| Galatea’s orbital elements and mass | |
| i (°) | 0.0231 ± 0.0091 |
| e | 0.00022 ± 0.00008 |
| mG | (2.12 ± 0.08) × 1018 kg |
Notes. Galatea’s mass is that derived in Porco (1991).
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