Open Access
Table 2.
Estimation of physical libration amplitudes (in degrees).
| Simulation | Prometheus | Pandora | Epimetheus | Janus |
|---|---|---|---|---|
| Cassini | 0.98 ± 0.06 | −5.2 ± 0.5 | −6.0 ± 0.4 | −0.39 ± 0.16 |
| Cassini (with Mimas’ c20, c22) | 0.98 ± 0.06 | −5.2 ± 0.5 | -6.0 ± 0.4 | −0.39 ± 0.16 |
| Cassini (with nutations from sat427) | 0.96 ± 0.06 | −5.0 ± 0.5 | −6.1 ± 0.4 | −0.36 ± 0.13 |
| Cassini (orientation from | 0.98 ± 0.06 | −5.1 ± 0.5 | −6.2 ± 0.4 | −0.36 ± 0.13 |
| French et al. 2017) | ||||
| Cassini (former Cassini orbit files) | 0.98 ± 0.06 | −5.1 ± 0.5 | −6.1 ± 0.4 | −0.42 ± 0.13 |
| Cassini (sat427 eph. for main moons) | 0.98 ± 0.06 | −5.0 ± 0.5 | −6.1 ± 0.4 | −0.41 ± 0.13 |
| Cassini (3rd/4th order harmonics) | 0.98 ± 0.06 | −5.1 ± 0.5 | −6.1 ± 0.4 | −0.41 ± 0.13 |
| This paper | 0.98 ± 0.08 | −5.2 ± 0.7 | −6.0 ± 0.6 | −0.39 ± 0.16 |
| Tiscareno et al. (2009) | – | – | −5.9 ± 1.2 | −0.3 ± 0.9 |
| Expected libration (homogeneous model |
 |
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 |
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| from Rambaux et al. 2022) | ||||
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