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Halo orbit determination in the mission analysis of the Hevelius-lunar microsatellite mission

Ceriotti, Matteo and Colombo, Camilla and Scarì, Ettore and Vasile, Massimiliano (2005) Halo orbit determination in the mission analysis of the Hevelius-lunar microsatellite mission. In: 56th International Astronautical Congress, 2005-10-17 - 2005-10-21.

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This paper introduces the mission analysis and design of the Hevelius - Lunar Microsatellite Mission. The objective of the mission is to place at least three landers on the dark side of the Moon, to perform some scientific experiments. A microsatellite orbiter is required to support the net lander as data-relay to the Earth. Moreover, another spacecraft, a carrier, has been designed in order to bring landers to the surface of the Moon, to map the landing site and to measure the gravitational field. The Hevelius mission analysis has been driven by the need to design lowcost and low-mass space missions. Since the relay satellite must continuously see the dark side of the Moon, an operative Halo orbit around the second Lagrangian point has been designed. Three different ways have been followed to determine the optimal Halo orbit. Optimal low-cost transfers to the Halo have been designed exploiting the invariant manifolds of the Earth-Moon L1 point while a Belbruno's WSB transfer to a frozen orbit around the Moon has been chosen for the carrier. The mission analysis process has been completed with a perturbations and eclipses analysis of the final operative orbits.