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Aerospace 2016, 3(4), 37; doi:10.3390/aerospace3040037

Results of Long-Duration Simulation of Distant Retrograde Orbits

Odyssey Space Research, 1120 NASA Pkwy, Houston, TX 77058, USA
Academic Editor: Konstantinos Kontis
Received: 31 July 2016 / Revised: 23 October 2016 / Accepted: 26 October 2016 / Published: 8 November 2016


Distant Retrograde Orbits in the Earth–Moon system are gaining in popularity as stable “parking” orbits for various conceptual missions. To investigate the stability of potential Distant Retrograde Orbits, simulations were executed, with propagation running over a thirty-year period. Initial conditions for the vehicle state were limited such that the position and velocity vectors were in the Earth–Moon orbital plane, with the velocity oriented such that it would produce retrograde motion about Moon. The resulting trajectories were investigated for stability in an environment that included the eccentric motion of Moon, non-spherical gravity of Earth and Moon, gravitational perturbations from Sun, Jupiter, and Venus, and the effects of radiation pressure. The results indicate that stability may be enhanced at certain resonant states within the Earth–Moon system. View Full-Text
Keywords: Distant Retrograde Orbit; DRO; orbits-stability; radiation pressure; orbits-resonance; dynamics Distant Retrograde Orbit; DRO; orbits-stability; radiation pressure; orbits-resonance; dynamics

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Turner, G. Results of Long-Duration Simulation of Distant Retrograde Orbits. Aerospace 2016, 3, 37.

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