150819-N-ZZ999-001 CAPE CANAVERAL, Fla. (Aug. 19, 2015) The U.S. Navy's fourth Mobile User Objective System (MUOS) satellite, encapsulated in a 5-meter payload fairing, is mated to an Atlas V booster inside the Vertical Integration Facility at Cape Canaveral's Space Launch Complex-41. The launch is scheduled for Aug. 31, 2015. MUOS is a next-generation narrow band tactical satellite communications system designed to significantly improve beyond-line-of-sight communications for U.S. forces on the move. (Photo courtesy United Launch Alliance/Released)