AS 3000

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AS 3000

Class: Communications. Nation: USA. Agency: GE Americom. Manufacturer: Lockheed Martin.

3-axis stabilisation with momentum wheels, magnetic torquers, Earth sensors and 2 redundant sets of 7 blowdown monopropellant hydrazine thrusters. Solar arrays provide 2800 W, 3 x 24 Ahr NiCd batteries. GEO insertion by Star 370B solid rocket motor. 24 C-band transponders (with 4 spares) .

Specification

Total Length: 1.6 m. Maximum Diameter: 1.3 m. Total Mass: 600 kg.

AS 3000 Chronology

20 November 1981 RCA Satcom 4; RCA Satcom 3R Program: Satcom. Launch Site: Cape Canaveral . Launch Vehicle: Delta 3914. Mass: 1,078 kg. Perigee: 35,814 km. Apogee: 35,852 km. Inclination: 2.6 deg.

16 January 1982 RCA Satcom 4 Program: Satcom. Launch Site: Cape Canaveral . Launch Vehicle: Delta 3914. Mass: 1,082 kg. Perigee: 35,964 km. Apogee: 35,994 km. Inclination: 1.9 deg.

28 October 1982 Satcom 5 Program: Satcom. Launch Site: Cape Canaveral . Launch Vehicle: Delta 3925. Mass: 590 kg. Perigee: 35,781 km. Apogee: 35,793 km. Inclination: 2.5 deg.

11 April 1983 RCA Satcom 6 Program: Satcom. Launch Site: Cape Canaveral . Launch Vehicle: Delta 3925. Mass: 2,385 kg. Perigee: 35,791 km. Apogee: 36,016 km. Inclination: 1.0 deg.

08 September 1983 RCA Satcom 7 Program: Satcom. Launch Site: Cape Canaveral . Launch Vehicle: Delta 3925. Mass: 1,121 kg. Perigee: 35,769 km. Apogee: 35,801 km. Inclination: 0.0 deg.

23 January 1984 Yuri 2A Program: BS. Launch Site: Tanegashima . Launch Vehicle: N-2. Mass: 670 kg. Perigee: 36,072 km. Apogee: 36,191 km. Inclination: 4.9 deg.

TV. BS-2a (Yuri-2a). Domestic satellite broadcasting; development of broadcasting satellite technology. Launch 0758 GMT. N launch vehicle flight no 12. Launching organization NASDA.

23 May 1984 Spacenet F1 Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 1. Mass: 705 kg. Perigee: 35,785 km. Apogee: 35,791 km. Inclination: 0.0 deg.

Stationed at 120 deg W. C, Ku band communications satellite.

10 November 1984 Spacenet F2 Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 2/3. Mass: 705 kg. Perigee: 35,784 km. Apogee: 35,792 km. Inclination: 0.0 deg.

Stationed at 68 deg W. C, Ku band communications satellite.

08 May 1985 GStar 1 Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 2/3. Mass: 705 kg. Perigee: 35,783 km. Apogee: 35,791 km. Inclination: 0.1 deg.

Stationed at 103 deg W. Ku band communications satellite.

12 September 1985 Spacenet F3 Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 2/3. FAILURE: Geosynchronous orbit injection failure. Third stage igniter cartridge failure was determined to be the most likely cause. Mass: 600 kg.

12 February 1986 Yuri 2B Program: BS. Launch Site: Tanegashima . Launch Vehicle: N-2. Mass: 677 kg. Perigee: 35,996 km. Apogee: 36,135 km. Inclination: 2.7 deg.

Stationed at 117 deg E. BS-2b (Yuri-2b). Domestic satellite broadcasting; development of broadcasting satellite technology. Launching organization NASDA. N launch vehicle flight no 14. Launch time 0755 GMT.

28 March 1986 GStar 2 Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 2/3. Mass: 1,140 kg. Perigee: 35,780 km. Apogee: 35,795 km. Inclination: 0.0 deg.

Ku band communications satellite. Stationed at 70 degrees W.

11 March 1988 Spacenet F3R Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 2/3. Mass: 1,212 kg. Perigee: 35,770 km. Apogee: 35,806 km. Inclination: 0.0 deg.

US domestic communications; 87 deg W. C, Ku band communications satellite.

08 September 1988 GStar 3 Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 2/3. Mass: 1,270 kg. Perigee: 35,769 km. Apogee: 35,806 km. Inclination: 5.3 deg.

AKM malfunctioned, but orbit achieved using on-board propulsion system. Ku band communications satellite.

28 August 1990 Yuri 3A Program: BS. Launch Site: Tanegashima . Launch Vehicle: H-1. Mass: 1,115 kg. Perigee: 35,775 km. Apogee: 35,800 km. Inclination: 0.0 deg.

Japanese DBS; 110 deg E. Continuation of broadcasting services by BS-2; accommodations to increasing and diversifying demands for broadcasting; establishment of common technology necessary for broadcasting satellite. Launching organization NASDA. Launch time 0905 GMT. BS-3a 'Yuri -3a'.

20 November 1990 GStar 4 Program: GTE. Launch Site: Kourou . Launch Vehicle: Ariane 42P. Mass: 1,295 kg. Perigee: 35,785 km. Apogee: 35,790 km. Inclination: 0.0 deg.

Stationed at 125 deg W. Ku band communications satellite.

18 April 1991 Yuri 3H Program: BS. Launch Site: Cape Canaveral . Launch Vehicle: Atlas I. FAILURE: RL-10 Centaur engine turbopump failed at T+361 seconds; destroyed by range safety. Mass: 600 kg.

29 May 1991 Aurora 2 Launch Site: Cape Canaveral . Launch Vehicle: Delta 7925. Mass: 1,336 kg. Perigee: 35,778 km. Apogee: 35,797 km. Inclination: 0.1 deg.

Stationed at 139 deg W. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

25 August 1991 Yuri 3B Program: BS. Launch Site: Tanegashima . Launch Vehicle: H-1. Mass: 1,115 kg. Perigee: 35,777 km. Apogee: 35,802 km. Inclination: 0.0 deg.

TV; 110 deg E.

31 August 1992 Satcom C4 Program: Satcom. Launch Site: Cape Canaveral . Launch Vehicle: Delta 7925. Mass: 2,000 kg. Perigee: 35,786 km. Apogee: 35,789 km. Inclination: 0.1 deg.

Stationed at 135 deg W.

10 September 1992 Satcom C3 Program: Satcom. Launch Site: Kourou . Launch Vehicle: Ariane 44LP. Mass: 1,375 kg. Perigee: 35,784 km. Apogee: 35,789 km. Inclination: 0.1 deg.

Stationed at 131 deg W.

08 July 1994 Yuri 3N Program: BS. Launch Site: Kourou . Launch Vehicle: Ariane 44L. Mass: 1,210 kg. Perigee: 35,777 km. Apogee: 35,797 km. Inclination: 0.1 deg.

Stationed at 109.67 deg E.

05 August 1995 Mugunghwa 1 Program: Koreasat. Launch Site: Cape Canaveral . Launch Vehicle: Delta 7925. FAILURE: Partial Failure. Mass: 1,459 kg. Perigee: 35,775 km. Apogee: 35,801 km. Inclination: 0.0 deg.

15 Ku-band transponders; boosted into geosynch orbit by satellite thrusters following Delta failure that left satellite in LEO; unplanned use of satellite propellant cut usable satellite lifetime by approx. 50 percent. Stationed at 116.0 deg E. Stage 1 SRM failure

14 January 1996 Koreasat 2 Program: Koreasat. Launch Site: Cape Canaveral . Launch Vehicle: Delta 7925. Mass: 600 kg. Perigee: 35,782 km. Apogee: 35,792 km. Inclination: 0.0 deg.

Geostationary at 116.0E.

Bibliography:

61 - Wilson, Andrew, editor,, Jane's/Interavia Space Directory, Jane's Information Group, Coulsdon, Surrey, 1992 et al.

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Last update 12 March 2001.
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