Characterizing Low-Thrust Transfers from Near-Rectilinear Halo Orbits to Low Lunar Orbits with Q-Law
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Abstract
Near rectilinear halo orbits (NRHOs) are an integral orbital regime in humanity's
permanent return to cislunar space. Traffic between the NRHO and low-lunar
orbit (LLO) is expected to increase dramatically, supporting cislunar activities.
Linking NRHOs and LLOs via low-thrust transfers will be a vital piece of transportation
infrastructure. This work provides an assessment of low-thrust transfers
from NRHOs to LLOs using Q-law, a Lyapyunov feedback controller based on
Keplerian elements, treating the Earth as a third-body perturbation. Leveraging
the deterministic nature of Q-law, low-thrust transfers between NRHOs and LLOs
are characterized for various propulsion systems, spacecraft mass, and departure
windows.
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2023-08
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