|Mission duration||14 years (planned)|
|Launch mass||3,412 kilograms (7,522 lb)|
|Start of mission|
|Launch date||December 22, 1997, 00:16UTC|
|Launch site||Kourou ELA-2|
|End of mission|
|Deactivated||January 14, 2005, 22:32UTC|
|Semi-major axis||42,169.0 kilometres (26,202.6 mi)|
|Perigee altitude||35,776.2 kilometres (22,230.3 mi)|
|Apogee altitude||35,820.4 kilometres (22,257.8 mi)|
|Epoch||May 5, 2017|
|Band||38 C Band, 6 Ku band|
|Coverage area||Indian Ocean|
The fourth of six Intelsat VIII satellites to be launched, Intelsat 804 was built by Lockheed Martin. It was a 3,412-kilogram (7,522 lb) spacecraft. The satellite carried a 2xLEROS-1B apogee motor for propulsion and was equipped with 38 C Band transponders and 6 Ku band transponders, powered by 2 solar cells more batteries. It was designed for a fourteen-year service life.
The launch of Intelsat 804 made use of an Ariane 4 rocket flying from Guiana Space Centre, Kourou, French Guiana. The launch took place at 00:116 UTC on December 22, 1997, with the spacecraft entering a geosynchronous transfer orbit. The satellite subsequently fired its apogee motor to achieve geostationary orbit.
On 14 January 2005 at 22:32 UTC, there was a failure of the power system.