Intelsat 604, previously named Intelsat VI F-4, was a communications satellite operated by Intelsat. Launched in 1990, it was the third of five Intelsat VI satellites to be launched. The Intelsat VI series was constructed by Hughes Aircraft, based on the HS-389 satellite bus.
Intelsat 604 was launched at 11:19 UTC on 23 June 1990, atop a Commercial Titan III carrier rocket, flight number CT-3, with an Orbus-21S upper stage.[2] The launch took place from Launch Complex 40 at Cape Canaveral Air Force Station,[3] and successfully placed Intelsat 604 into a geosynchronous transfer orbit. The satellite raised itself into its final geostationary orbit using two liquid-fuelled R-4D-12 engines,[4] with the satellite arriving in geostationary orbit on 28 June 1990.[5]