September 15, 2026 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 Aerospace Engineer Flies High Teaching Community College Faculty receive promotions in the School of Architecture and Planning for 2026 See all news