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Spacenet 1, 2, 3, 3R / ZX 5, 5R (ChinaSat 5, 5R)

Spacenet 1 [RCA]

Spacenet 1 to 3R were a series of hybrid C-/Ku-band satellites. The Spacenet satellites were built for Southern Pacific Communications (SPC), which was bought by GTE before the first Spacenet ever launched.

The spacecraft were based on RCA's 3-axis stabilized AS-3000 bus.

To help offset the loss of DFH-2A 4 and the delay in the DFH-3 program, China in late 1992 purchased the nearly 9-year-old Spacenet 1 from GTE. In 1993 the spacecraft, renamed Zhongxing 5 (ChinaSat 5), was moved to 115.5 degrees E. Following ChinaSat-7's launch failure, ChinaSat purchased a second in-orbit satellite (Spacenet-2) in 1997 and renamed it ChinaSat-5R.

Nation: USA
Type / Application: Communication
Operator: GTE
Contractors: RCA Astro
Equipment: 18 (+3) C-band, 6 (+1) Ku-band transponders
Configuration: AS-3000
Propulsion: Star-30B (#1), Star-30BP (#2, 3), Star-30C (#3R)
Power: 2 deployable solar arrays, batteries
Lifetime:
Mass: 1195 kg (692 kg BOL)
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
Spacenet 1 → ZX 5 (ChinaSat 5) 1984-049A 23.05.1984 Ko ELA-1 Ariane-1
Spacenet 2 → ZX 5R (ChinaSat 5R) 1984-114A 10.11.1984 Ko ELA-1 Ariane-3 with MARECS 2
Spacenet 3 1985-F03 12.09.1985 Ko ELA-1 F Ariane-3 with ECS 3
Spacenet 3R 1988-018A 11.03.1988 Ko ELA-1 Ariane-3 with Télécom 1C
Further Spacenet missions:
Further ZX (ChinaSat) missions: