Orion 3 was an American spacecraft which was intended for use by Orion Network Systems, as a geostationary communications satellite. It was to have been positioned in geostationary orbit at a longitude of 139° East, from where it was to have provided communications services to Asia and Oceania. Due to a malfunction during launch, it was instead delivered to a useless low Earth orbit.
Orion 3 was constructed by Hughes Space and Communications, based on an HS-601HP satellite bus. It was equipped with 10 G/H band (IEEE C band) and 33 J band (IEEE Ku band) transponders, and at launch it had a mass of . The satellite was expected to remain operational for around fifteen years. Orion Network Systems merged with Loral Space & Communications in 1999 after the Orion 3 launch failure.
The Orion 3 satellite was launched on the second flight of the Delta III rocket, using the standard 8930 configuration. The launch occurred from Space Launch Complex 17B at the Cape Canaveral Ai