1. Analysis of Higher-Order Effects on Low Altitude Lunar Orbits Caused by Irregularities in Mass Distribution Open Access Author: Castro Martinez, Guillermo Title: Analysis of Higher-Order Effects on Low Altitude Lunar Orbits Caused by Irregularities in Mass Distribution Area of Honors: Aerospace Engineering Keywords: Moon GravitySpherical HarmonicsGRAILOrbital Elements File: Download Thesis_Manuscript_FINAL_DRAFT_2.0.pdf Thesis Supervisors: Robert G. Melton, Thesis SupervisorRobert G. Melton, Thesis Honors AdvisorPuneet Singla, Faculty Reader