USN Program Executive Office for Space Systems

6 satellites in orbit, 2 operating.

The count is the catalogue’s as of Nov 8, 2026, 4:17 PM; whether a satellite is operating is as Orbinauts writes it where it has written when the satellite’s mission ended, and otherwise as Jonathan McDowell’s general catalogue believes it, licensed CC BY 4.0: GCAT

USN Program Executive Office for Space Systems is how GCAT, Jonathan McDowell’s general catalogue (CC BY 4.0), names the organisation under the code PEOSS, of United States of America. This page gathers the satellites it flies and those of every organisation under it, each row naming the organisation that flies it. It is part of Space and Naval Warfare Systems Command, Space Field Activity. See every satellite of Space and Naval Warfare Systems Command, Space Field Activity.

SatelliteKindOrbit classLaunchedOperatingFlown by
UFO 11 (USA 174)Communications satelliteInclined geosynchronousYesSPAWAR PMW 146 Com Sat Program Office
UFO 10 (USA 146)Communications satelliteInclined geosynchronousYesSPAWAR PMW 146 Com Sat Program Office
UFO 9 (USA 140)Communications satelliteInclined geosynchronousEndedSPAWAR PMW 146 Com Sat Program Office
UFO 8 (USA 138)Communications satelliteInclined geosynchronousEndedSPAWAR PMW 146 Com Sat Program Office
UFO 6 (USA 114)Communications satelliteInclined geosynchronousEndedSPAWAR PMW 146 Com Sat Program Office
UFO 5 (USA 111)Communications satelliteInclined geosynchronousEndedSPAWAR PMW 146 Com Sat Program Office