The Lunar Polar Hydrogen Mapper (LunaH-Map) is a 6U CubeSat selected for flight under NASA’s Small, Innovative Missions for Planetary Exploration (SIMPLEx) program. LunaH-Map is manifested as a secondary payload on the Space Launch System (SLS) Exploration Mission 1 (EM-1). The LunaH-Map spacecraft is equipped with gimbaled solar arrays, three reaction wheels, a star tracker, an X-Band radio, a command & data handling system, power control system, neutron spectrometer array, and propulsion system. During the science phase, the miniature neutron spectrometer (Mini-NS) will measure neutron counts about the perilune of each orbit to enable the mapping of hydrogen enrichments within permanently shadowed regions (PSRs) at spatial scales less than 15 km. My contribution to the LunaH-Map mission consists of calibrating and characterizing the Mini-NS in collaboration with RMD Inc. and LANL.