The Universal Navigation Assistance Array, abbreviated to UNAA, is a inter-connected system of satellites and outposts used to provide navigational support for its users. One of, if not the, largest sensor network in all of known space, the UNAA provides real-space mapping and monitoring supported in nearly every system in Human Space. While optimised for space travel, the UNAA has two additional sub-networks, the Universal Global Positioning System (UGPS) and Catalogue of Attractions and Businesses, to further assist its users on the surface of various colonies. All this is operated and maintained by the UEG-sponsored Navigation & Survey Agency, though some branches have been loaned to private companies.