This communications technology demonstration satellite tested direct television broadcast beams and was also equipped with conventional communications transponders. It conducted a data relay experiment with ESA's EURECA satellite.

Olympus-1 was a multi-payload communications satellite for direct television broadcast in the bands of the 1977 Geneva Plan of the International Telecommunications Union (ITU) (including a national beam to Italy) plus communication transponders in the 14/12 GHz, 2nd 30/20 GHz bands. Positioned on geostationary orbit at 341 deg E.

Typical orbit: 35758 km x 35817 km at 1 degrees inclination. Mass: 2,595 kg (5,720 lb).

• 1989 July 12 - Olympus-1 - Launch Site: Kourou. Launch Complex: ELA1. Launch Vehicle: Ariane. Mass: 2,595 kg (5,720 lb). Perigee: 35,758 km (22,218 mi). Apogee: 35,817 km (22,255 mi). Inclination: 1.20 deg. Period: 1,436.20 min.
  Commsat technology demonstration;19 deg W. Olympus-1 is a multi-payload communications satellite for direct TV broadcast in the bands of the 1977 Geneva Plan of the International Telecommunications Union (ITU) (including a national beam to Italy) plus communication transponde rs in the 14/12 GHz, 2nd 30/20 GHz bands. The latter are also used for a data relay experiment with ESA's EURECA satellite. Position on geostationary orbit 341 deg E. Launch time 0014:00 UT. Positioned in geosynchronous orbit at 19 deg W in 1989-1991; 19 deg W in 1991-1993 As of 4 September 2001 located at 82.22 deg E drifting at 3.961 deg E per day. As of 2007 Mar 10 located at 118.63E drifting at 3.947E degrees per day.