Abstract
The dwarf planet Haumea is a very interesting celestial body due to the characteristics of its physical form and also the recently observed ring. A Kuiper Belt object, Haumea is a triaxial ellipsoid with dimensions of approximately 513 × 852 × 1161 (km), with a mass of 4.006 × 1021 kg and a rotation period of 3.915341h. The dwarf planet Haumea has its system formed by two natural satellites, the moons Namaka and Hi’iaka. We have presented an analysis of orbits around the dwarf planet Haumea taking into account the influences of the perturbations of its nonsphericity (J2, J4, C22). We have found that the C22 term and the rotation rate of Haumea have contributed strongly to reduce the variation rate of the periapsis radius of the spacecraft. We have calculated the spherical harmonics of Haumea taking into account the most current values for the semi-axes of the ellipsoid and we have presented a comparison with the values of the harmonics found in other works.
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