July 26, 2024 D. Arnas, R. Linares “Approximate Analytical Solution to the Zonal Harmonics Problem Using Koopman Operator Theory” Journal of Guidance Control and Dynamics [07315090] 44.11 (2021): 1909-1923. Print. Share this 44.11 (2021): 1909-1923. Print."] Related Stories See all news Prof. Julie Shah in MIT Spectrum: How will we make things? NASA to fund new AeroAstro research on orbital debris, lunar sustainability See all news