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Table 4
Dynamical parameters of Hi‘iaka and Namaka reported in EQJ2000 and derived mass of Haumea.
| Hi‘iaka | Namaka | |||||
| Parameter | Value | 1σ | Value | 1σ | Units | Comment |
|
|
||||||
| P | 49.031527 | 0.008980 | 18.323535 | 0.003016 | day | Orbital period |
| a | 49 502.940 | 741.272 | 25 147.829 | 634.162 | km | Semi-major axis |
| e | 0.05260 | 0.00599 | 0.15543 | 0.03127 | – | Eccentricity |
| i | 259.48 | 0.71 | 88.83 | 1.13 | deg. | Inclination |
| Ω | 192.99 | 0.21 | 206.73 | 0.67 | deg. | Longitude of ascending node |
| ω | 276.14 | 10.40 | 143.44 | 11.07 | deg. | Argument of the pericenter |
| tp (JD) | 2 452 190.3944 | 1.383 | 2 452 167.5299 | 0.763 | day | Time of pericenter |
| Mass | 3.999 | 0.179 | 3.754 | 0.284 | × 1021 kg | System mass |
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