For my Masters thesis, I worked on quasi-periodic orbit stationkeeping under the guidance of Prof. Aaron J. Rosengren. My other comittee members were Sylvia Herbert and Thomas Bewley. I fused the dynamics and control theoretic perspectives to develop efficient stationkeeping strategies for low-thrust, cislunar spacecraft. The approach fused reachability analysis, covariance steering, sequential convex programming, and collocation strategies.