Encyclopedia Astronautica
Titan Centaur 401A


Version of Titan 4 with Centaur T upper stage.

Failures: 1. First Fail Date: 1998-08-12. Last Fail Date: 1998-08-12. LEO Payload: 9,000 kg (19,800 lb). Payload: 9,000 kg (19,800 lb) to a GTO. Failures: 1. First Fail Date: 1999-04-30. Last Fail Date: 1999-04-30.

Gross mass: 868,000 kg (1,913,000 lb).
Height: 63.10 m (207.00 ft).
Diameter: 3.05 m (10.00 ft).
Thrust: 14,200.00 kN (3,192,200 lbf).
Apogee: 40,000 km (24,000 mi).
First Launch: 1994.02.07.
Last Launch: 1998.08.12.
Number: 9 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Milstar American military communications satellite. 6 launches, 1994.02.07 (USA 99) to 2003.04.08 (USA 169). Milstar was a series of advanced US military communications satellites designed to provide global jam-resistant communications for military users. More...
  • Milstar American military communications satellite. 6 launches, 1994.02.07 (USA 99) to 2003.04.08 (USA 169). Milstar was a series of advanced US military communications satellites designed to provide global jam-resistant communications for military users. More...
  • Trumpet American military naval signals reconnaisance satellite. 3 launches, 1994.05.03 (USA 103) to 1997.11.08 (USA 136). More...
  • Trumpet American military naval signals reconnaisance satellite. 3 launches, 1994.05.03 (USA 103) to 1997.11.08 (USA 136). More...
  • Mercury ELINT American military naval signals reconnaisance satellite. 3 launches, 1994.08.27 (USA 105) to 1998.08.12 (Mercury ELINT). Class of heavy signals intelligence satellites introduced at the end of the 1990's. More...
  • Mercury ELINT American military naval signals reconnaisance satellite. 3 launches, 1994.08.27 (USA 105) to 1998.08.12 (Mercury ELINT). Class of heavy signals intelligence satellites introduced at the end of the 1990's. More...
  • Advanced Orion American military naval signals intelligence and reconnaisance satellite. Highly classified, operational, first launch 1995.05.14. More...
  • Advanced Orion American military naval signals intelligence and reconnaisance satellite. Highly classified, operational, first launch 1995.05.14. More...

See also
  • Titan The Titan launch vehicle family was developed by the United States Air Force to meet its medium lift requirements in the 1960's. The designs finally put into production were derived from the Titan II ICBM. Titan outlived the competing NASA Saturn I launch vehicle and the Space Shuttle for military launches. It was finally replaced by the USAF's EELV boosters, the Atlas V and Delta IV. Although conceived as a low-cost, quick-reaction system, Titan was not successful as a commercial launch vehicle. Air Force requirements growth over the years drove its costs up - the Ariane using similar technology provided lower-cost access to space. More...
  • Titan The Titan launch vehicle family was developed by the United States Air Force to meet its medium lift requirements in the 1960's. The designs finally put into production were derived from the Titan II ICBM. Titan outlived the competing NASA Saturn I launch vehicle and the Space Shuttle for military launches. It was finally replaced by the USAF's EELV boosters, the Atlas V and Delta IV. Although conceived as a low-cost, quick-reaction system, Titan was not successful as a commercial launch vehicle. Air Force requirements growth over the years drove its costs up - the Ariane using similar technology provided lower-cost access to space. More...

Associated Manufacturers and Agencies
  • Martin American manufacturer of rockets, spacecraft, and rocket engines. Martin Marietta Astronautics Group (1956), Denver, CO, USA. More...
  • Martin American manufacturer of rockets, spacecraft, and rocket engines. Martin Marietta Astronautics Group (1956), Denver, CO, USA. 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 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 LC40 Titan launch complex. Constructed as part of the Titan Integrate-Transfer-Launch (ITL) facility at the north end of Cape Canaveral in the early 1960s. Supported a wide variety of military space missions involving Titan IIIC, Titan 34D and Titan IV vehicles. More...
  • Cape Canaveral LC41 Titan, Atlas V launch complex. Complexes 40 and 41 were constructed as part of the Integrate-Transfer-Launch (ITL) Titan launch facility at the north end of Cape Canaveral in the early 1960s. Over the next three decades, the complexes supported a wide variety of military space missions involving Titan IIIC, Titan 34D and Titan IV. Complex 41 was deactivated at the end of 1977, then upgraded for the Titan IV program in the 1986-88 period. In October 1999, Complex 41 was demolished with high explosives in order for a new pad for launch of the Atlas 5 rocket to be erected. By then it had been the starting point for 27 Titan flights. More...

Associated Stages
  • Centaur G Lox/LH2 propellant rocket stage. Loaded/empty mass 23,880/2,775 kg. Thrust 146.80 kN. Vacuum specific impulse 444 seconds. Centaur for Titan 4 More...
  • Centaur G Lox/LH2 propellant rocket stage. Loaded/empty mass 23,880/2,775 kg. Thrust 146.80 kN. Vacuum specific impulse 444 seconds. Centaur for Titan 4 More...
  • Titan UA1207 Solid propellant rocket stage. Loaded/empty mass 319,330/51,230 kg. Thrust 7,117.00 kN. Vacuum specific impulse 272 seconds. More...
  • Titan 4-2 N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 39,500/4,500 kg. Thrust 459.51 kN. Vacuum specific impulse 316 seconds. More...
  • Titan 4-2 N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 39,500/4,500 kg. Thrust 459.51 kN. Vacuum specific impulse 316 seconds. More...
  • Titan UA1207 Solid propellant rocket stage. Loaded/empty mass 319,330/51,230 kg. Thrust 7,117.00 kN. Vacuum specific impulse 272 seconds. More...
  • Titan 4-1 N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 163,000/8,000 kg. Thrust 2,428.31 kN. Vacuum specific impulse 302 seconds. More...
  • Titan 4-1 N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 163,000/8,000 kg. Thrust 2,428.31 kN. Vacuum specific impulse 302 seconds. More...

Titan Centaur 401A Chronology


1994 February 7 - . 21:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-10/TC-12 (45E-3).
  • USA 99 - . Payload: Milstar 1-01 / DFS 1. Mass: 4,500 kg (9,900 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: Milstar. USAF Sat Cat: 22988 . COSPAR: 1994-009A. Apogee: 35,790 km (22,230 mi). Perigee: 35,733 km (22,203 mi). Inclination: 12.0000 deg. Period: 1,434.00 min. Summary: Military communications. Positioned in geosynchronous orbit at 90 deg W in 1994; 120 deg W in 1995-1999..

1994 May 3 - . 15:55 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-7/TC-10 (45E-1).
  • USA 103 - . Payload: Trumpet 1. Mass: 5,200 kg (11,400 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Trumpet. USAF Sat Cat: 23097 . COSPAR: 1994-026A. Apogee: 537 km (333 mi). Perigee: 518 km (321 mi). Inclination: 55.1000 deg. Period: 95.20 min. Summary: Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1994 August 27 - . 08:58 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-9/TC-11 (45E-2).
  • USA 105 - . Payload: Mercury ELINT 1. Nation: USA. Agency: NRO; USAF. Class: Military. Type: Electronic intelligence satellite. Spacecraft: Mercury ELINT. USAF Sat Cat: 23223 . COSPAR: 1994-054A. Apogee: 35,790 km (22,230 mi). Perigee: 35,780 km (22,230 mi). Inclination: 0.0000 deg. Period: 1,436.10 min. Summary: First launch of Mercury ELINT satellite..

1995 May 14 - . 13:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-23/TC-17 (45E-8).
  • USA 110 - . Payload: Advanced Orion 1. Nation: USA. Agency: NRO; CIA. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Advanced Orion. USAF Sat Cat: 23567 . COSPAR: 1995-022A. Apogee: 35,787 km (22,236 mi). Perigee: 35,787 km (22,236 mi). Inclination: 0.0000 deg. Summary: First launch of 'Advanced Orion' (real code name unknown) new model geostationary ELINT satellite..

1995 July 10 - . 12:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-19/TC-8 (45E-5).
  • USA 112 - . Payload: Trumpet 2. Mass: 5,200 kg (11,400 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Trumpet. USAF Sat Cat: 23609 . COSPAR: 1995-034A. Apogee: 39,000 km (24,000 mi). Perigee: 1,000 km (600 mi). Inclination: 64.0000 deg.

1995 November 6 - . 05:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-21/TC-13 (45E-7).
  • USA 115 - . Payload: Milstar DFS 2. Mass: 4,500 kg (9,900 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: Milstar. USAF Sat Cat: 23712 . COSPAR: 1995-060A. Apogee: 35,787 km (22,236 mi). Perigee: 35,787 km (22,236 mi). Inclination: 10.0000 deg. Summary: Secure military communication. Positioned in geosynchronous orbit at 4 deg E in 1995-2001. As of 2005 Mar 14 located at 10.26E drifting at 0.012E degrees per day..

1996 April 24 - . 23:37 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur K-16/TC-15 (45E-4).
  • USA 118 - . Payload: Mercury ELINT 2. Nation: USA. Agency: NRO; USAF. Class: Military. Type: Electronic intelligence satellite. Spacecraft: Mercury ELINT. USAF Sat Cat: 23855 . COSPAR: 1996-026A. Perigee: 30,000 km (18,000 mi). Summary: Second launch of Mercury ELINT satellite..

1997 November 8 - . 02:05 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur 4A-17/TC-16 (45E-?).
  • USA 136 - . Payload: Trumpet 3. Mass: 5,200 kg (11,400 lb). Nation: USA. Agency: NRO; USAF. Manufacturer: Kent. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Trumpet. USAF Sat Cat: 25034 . COSPAR: 1997-068A. Apogee: 39,059 km (24,270 mi). Perigee: 1,100 km (600 mi). Inclination: 63.6000 deg.

1998 August 12 - . 11:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan Centaur 401A. LV Configuration: Titan 401A/Centaur 4A-20/TC-9 (K-17). FAILURE: Due to guidance system loss of heading after power interrupt, booster pitched over 40 seconds after launch, and was destroyed by range safety.. Failed Stage: G.
  • Mercury ELINT - . Payload: Mercury ELINT 3. Nation: USA. Agency: NRO; NSA. Manufacturer: TRW. Class: Military. Type: Electronic intelligence satellite. Spacecraft: Mercury ELINT. COSPAR: F980812A. Summary: Third launch of Mercury ELINT satellite..

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