Table 1.
Ellipsoidal shape of Phoebe.
| References | Castillo-Rogez et al. (2012) | Thomas et al. (2018) | This paper |
|---|---|---|---|
| (axi-symmetric) | |||
| Mean radius (km) | 106.5 ± 0.7 | 106.4 ± 0.4 | 106.4 ± 0.5 |
| a (km) | 109.3 ± 0.6 | 109.3 ± 0.9 | 109.7 ± 0.5 |
| b (km) | 108.4 ± 1.4 | 108.4 ± 0.4 | – |
| c (km) | 101.8 ± 0.3 | 101.8 ± 0.2 | 101.2 ± 0.5 |
 (km) |
7.1 ± 1.0 | 7.1 ± 0.7 | 8.5 ± 0.7 |
| a − b (km) | 0.9 ± 1.5 | 0.9 ± 1.00 | – |
Notes. The uncertainties in Castillo-Rogez et al. (2012) and in Thomas et al. (2018) did not take into account the heavily crater surface and as argued in Castillo-Rogez et al. (2012) the estimated uncertainties is around 2 km. The quantity 
corresponds to (a + b)/2. In the column Thomas et al. (2018), we invert the a and b values.
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