Encyclopedia Astronautica
Atlas Centaur G



atlasg.jpg
Atlas G
Atlas G - COSPAR 1989-077
Atlas-Centaur launch vehicles using stretched, uprated Atlas core.

LEO Payload: 3,630 kg (8,000 lb) to a 185 km orbit. Payload: 2,255 kg (4,971 lb) to a GTO. Failures: 2. First Fail Date: 1984-06-09. Last Fail Date: 1987-03-26. Launch Price $: 75.000 million in 1985 dollars. Flyaway Unit Cost $: 70.300 million in 1994 dollars.

Gross mass: 166,140 kg (366,270 lb).
Payload: 3,630 kg (8,000 lb).
Height: 38.00 m (124.00 ft).
Diameter: 3.05 m (10.00 ft).
Thrust: 1,939.30 kN (435,972 lbf).
Apogee: 185 km (114 mi).
First Launch: 1984.06.09.
Last Launch: 1989.09.25.
Number: 7 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • FLTSATCOM American military communications satellite. 8 launches, 1978.02.09 (Fltsatcom 1) to 1989.09.25 (USA 46). More...
  • Intelsat 5 American communications satellite. 9 launches, 1980.12.06 (Intelsat 5 F-2) to 1984.06.09 (Intelsat 5 F-9). The last five of the nine spacecraft in this block carry a maritime mobile payload (seven additional transponders) for lease by Inmarsat. More...
  • Intelsat 5A American communications satellite. 6 launches, 1985.03.22 (Intelsat 5A F-10) to 1989.01.27 (Intelsat 5A F-15). The Intelsat 5A series was derived from the Intelsat 5. More...

Associated Engines
  • LR105-7 Rocketdyne Lox/Kerosene rocket engine. 386.4 kN. Atlas space launchers. Out of production. Atlas Sustainer. Gas generator, pump-fed. Evolved from MA-2 ICBM system. Isp=316s. First flight 1963. More...
  • LR89-7 Rocketdyne Lox/Kerosene rocket engine. 948 kN. Atlas space launchers. Out of production. Designed for booster applications. Gas generator, pump-fed. Shared turbopumps for booster engines. Evolved from MA-2 ICBM system. Isp=294s. First flight 1963. More...
  • RL-10A-3A Pratt and Whitney lox/lh2 rocket engine. 73.4 kN. Isp=444s. Used on Centaur stage atop Atlas G, Atlas I, Atlas II, Titan 4. First flight 1984. More...

See also
  • Atlas The Atlas rocket, originally developed as America's first ICBM, was the basis for most early American space exploration and was that country's most successful medium-lift commercial launch vehicle. It launched America's first astronaut into orbit; the first generations of spy satellites; the first lunar orbiters and landers; the first probes to Venus, Mars, Mercury, Jupiter, and Saturn; and was America's most successful commercial launcher of communications satellites. Its innovative stage-and-a-half and 'balloon tank' design provided the best dry-mass fraction of any launch vehicle ever built. It was retired in 2004 after 576 launches in a 47-year career. More...

Associated Manufacturers and Agencies
  • Convair American manufacturer of rockets, spacecraft, and rocket engines. Convair, USA. More...

Associated Programs
  • Intelsat Intelsat operated the world's first commercial communications satellite. It has provided the scheduled transoceanic television and voice and data communications service ever since. More...

Associated Launch Sites
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...
  • Cape Canaveral LC36B Atlas V, Atlas launch complex. Atlas Centaur launch pad, in service from 1964 until the retirement of the launch vehicle. More...

Associated Stages
  • Atlas MA-5 Lox/Kerosene propellant rocket stage. Loaded/empty mass 3,646/3,646 kg. Thrust 1,896.01 kN. Vacuum specific impulse 294 seconds. More...
  • Atlas G/H/I Lox/Kerosene propellant rocket stage. Loaded/empty mass 142,536/4,236 kg. Thrust 386.30 kN. Vacuum specific impulse 316 seconds. More...
  • Centaur I Lox/LH2 propellant rocket stage. Loaded/empty mass 15,600/1,700 kg. Thrust 146.80 kN. Vacuum specific impulse 444 seconds. More...

Atlas Centaur G Chronology


1984 June 9 - . 23:03 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas Centaur G. LV Configuration: Atlas G Centaur AC-62 / Centaur D-1AR 5042G. FAILURE: Centaur structural failure. . Failed Stage: 2.
  • Intelsat 5 F-9 - . Mass: 1,091 kg (2,405 lb). Nation: International. Agency: Intelsat. Program: Intelsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Intelsat 5. Decay Date: 1984-10-24 . USAF Sat Cat: 15034 . COSPAR: 1984-057A. Apogee: 1,227 km (762 mi). Perigee: 180 km (110 mi). Inclination: 29.2000 deg. Period: 98.90 min. Summary: Failure of Centaur upper stage left stranded in useless orbit. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle was to have put payload into geosynchronous transfer orbit.

1985 March 22 - . 23:58 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas Centaur G. LV Configuration: Atlas G Centaur AC-63 / Centaur D-1AR 5043G.
  • Intelsat 5A F-10 - . Mass: 2,013 kg (4,437 lb). Nation: International. Agency: Intelsat. Program: Intelsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Intelsat 5A. USAF Sat Cat: 15629 . COSPAR: 1985-025A. Apogee: 36,468 km (22,660 mi). Perigee: 36,237 km (22,516 mi). Inclination: 7.2000 deg. Period: 1,465.10 min. Positioned in geosynchronous orbit at 24 deg W in 1985-1990; 174 deg E in 1990-1994; 66 deg E in 1994-1995; 57 deg E in 1995-1996; 33 deg E in 1996-1999 As of 5 September 2001 located at 135.23 deg W drifting at 7.152 deg W per day. As of 2007 Mar 9 located at 107.21W drifting at 7.157W degrees per day.

1985 June 30 - . 00:44 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas Centaur G. LV Configuration: Atlas G Centaur AC-64 / Centaur D-1AR 5044G.
  • Intelsat 5A F-11 - . Mass: 1,098 kg (2,420 lb). Nation: International. Agency: Intelsat. Program: Intelsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Intelsat 5A. USAF Sat Cat: 15873 . COSPAR: 1985-055A. Apogee: 35,799 km (22,244 mi). Perigee: 35,773 km (22,228 mi). Inclination: 0.7000 deg. Period: 1,436.10 min. Positioned in geosynchronous orbit at 27 deg W in 1985-1990; 63 deg E in 1990-1992; 177 deg E in 1992-1994; 180 deg E in 1994-1997; 29 deg W in 1998-1999 As of 4 September 2001 located at 29.54 deg W drifting at 0.005 deg W per day. As of 2007 Mar 9 located at 113.07W drifting at 0.696W degrees per day.

1985 September 28 - . 23:36 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas Centaur G. LV Configuration: Atlas G Centaur AC-65 / Centaur D-1AR 5045G.
  • Intelsat 5A F-12 - . Mass: 1,096 kg (2,416 lb). Nation: International. Agency: Intelsat. Program: Intelsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Intelsat 5A. Completed Operations Date: 1998-06-23 . USAF Sat Cat: 16101 . COSPAR: 1985-087A. Apogee: 36,140 km (22,450 mi). Perigee: 36,086 km (22,422 mi). Inclination: 6.2000 deg. Period: 1,452.80 min. Telephone communications; 31 deg E. Launch vehicle put payload into geosynchronous transfer orbit Positioned in geosynchronous orbit at 60 deg E in 1985-1989; 1 deg W in 1989-1994; 21 deg W in 1994-1996; 56 deg W in 1996-1998 As of 28 August 2001 located at 145.57 deg E drifting at 4.159 deg W per day. As of 2007 Mar 10 located at 19.14E drifting at 4.163W degrees per day.

1986 December 5 - . 02:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas Centaur G. LV Configuration: Atlas G Centaur AC-66 / Centaur D-1AR 5046G.
  • USA 20 - . Payload: Fltsatcom 7. Mass: 2,310 kg (5,090 lb). Nation: USA. Agency: USN. Class: Communications. Type: Military communications satellite. Spacecraft: Fltsatcom. USAF Sat Cat: 17181 . COSPAR: 1986-096A. Apogee: 35,832 km (22,264 mi). Perigee: 35,740 km (22,200 mi). Inclination: 0.9000 deg. Period: 1,436.10 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit Positioned in geosynchronous orbit at 100 deg W in 1987-1999 Last known longitude (27 July 1999) 100.33 deg W drifting at 0.027 deg W per day.

1987 March 26 - . 21:22 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas Centaur G. LV Configuration: Atlas G Centaur AC-67 / Centaur D-1AR 5048G. FAILURE: Lightning strike zapped guidance at T+51 seconds. Fault was directly attributed to a random memory upset that forced rocket to veer off course. Destroyed by range safety.. Failed Stage: G.
  • Fltsatcom 6 - . Payload: Fltsatcom 6. Mass: 2,300 kg (5,000 lb). Nation: USA. Agency: USN. Class: Communications. Type: Military communications satellite. Spacecraft: Fltsatcom. Decay Date: 1987-03-26 . COSPAR: F870326A.

1989 September 25 - . 08:41 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas Centaur G. LV Configuration: Atlas G Centaur AC-68 / Centaur D-1AR 5047G.
  • USA 46 - . Payload: Fltsatcom 8. Mass: 2,310 kg (5,090 lb). Nation: USA. Agency: USN. Class: Communications. Type: Military communications satellite. Spacecraft: Fltsatcom. USAF Sat Cat: 20253 . COSPAR: 1989-077A. Apogee: 35,797 km (22,243 mi). Perigee: 35,777 km (22,230 mi). Inclination: 4.1000 deg. Period: 1,436.10 min. Last in series of 8. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit Positioned in geosynchronous orbit at 23 deg W in 1989-1999.

Home - Browse - Contact
© / Conditions for Use