Orbital Tolerance and Intrinsic Orbital Capacity for Electric Propulsion Constellations
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2024-06-08
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American Institute of Aeronautics and Astronautics (AIAA)
Abstract
Large constellations are typically designed using sets of periodic orbits and satellite control boxes sized to ensure compatible phasing between co-orbital constellation planes to prevent conjunction events. This work investigates how the control action for orbit maintenance influences feasible intra-shell and inter-shell distances in a satellite constellation. 2D Lattice Flower Constellations are simulated in an environment inclusive of orbital perturbations, with on-board sensors and an electric propulsion system constituting the satellite Guidance, Navigation, and Control system. An analysis to define estimates for minimum separation distances is performed as a function of control, propulsion, orbit, environmental, and spacecraft characteristics. An estimate of the intrinsic (geometric) orbital capacity is proposed, based on current and advanced technologies, in order to quantify the number of admissible spacecraft and orbital shells in a selected altitude range. Simulation results are used to improve the fidelity of intrinsic orbital capacity estimates and to understand factors that influence the number of admissible satellite locations in Low Earth Orbit.
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This is a manuscript of the article published as Lavezzi, Giovanni, Miles Lifson, Simone Servadio, and Richard Linares. "Orbital Tolerance and Intrinsic Orbital Capacity for Electric Propulsion Constellations." Journal of Spacecraft and Rockets (2024): 1-15. doi: https://doi.org/10.2514/1.A35875.