Encyclopedia Astronautica
ATT


American agency overseeing development of spacecraft. American Telephone and Telegraph, USA.

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Telstar American communications satellite. 2 launches, 1962.07.10 (Telstar 1) and 1963.05.07 (Telstar 2). More...

See also
  • Agency Agencies or institutions overseeing design, development, construction, or operation of space-related systems. More...

Associated Programs
  • Telstar Network of communications satellites, operated by AT&T Skynet, later Loral Skynet, Bedminster. More...

ATT Chronology


1962 July 10 - . 08:35 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Thor Delta. LV Configuration: Thor Delta 316/D11.
  • Telstar 1 - . Mass: 77 kg (169 lb). Nation: USA. Agency: ATT. Class: Communications. Type: Civilian communications satellite. Spacecraft: Telstar. USAF Sat Cat: 340 . COSPAR: 1962-A-Epsilon-1. Apogee: 5,643 km (3,506 mi). Perigee: 945 km (587 mi). Inclination: 44.8000 deg. Period: 157.80 min. Summary: First commercial comsat; active repeater. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1963 May 7 - . 11:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Delta B. LV Configuration: Thor Delta B 366/D18.
  • Telstar 2 - . Mass: 79 kg (174 lb). Nation: USA. Agency: ATT. Class: Communications. Type: Civilian communications satellite. Spacecraft: Telstar. USAF Sat Cat: 573 . COSPAR: 1963-013A. Apogee: 10,802 km (6,712 mi). Perigee: 972 km (603 mi). Inclination: 42.7000 deg. Period: 225.30 min. Summary: Active repeater. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). .

1983 July 28 - . 22:49 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Delta. Launch Vehicle: Delta 3920/PAM. LV Configuration: Delta 3920/PAM D171.
  • Telstar 3A - . Payload: Telstar 301 -> Arabsat 1E. Mass: 625 kg (1,377 lb). Nation: USA. Agency: ATT. Program: Telstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. Completed Operations Date: 1996-09-29 . USAF Sat Cat: 14234 . COSPAR: 1983-077A. Apogee: 36,108 km (22,436 mi). Perigee: 35,885 km (22,297 mi). Inclination: 6.5000 deg. Period: 1,446.80 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 96 deg W in 1983-1985; 105 deg W in 1985; 96 deg W in 1985-1994; 107 deg W in 1994; 20 deg E in 1995-1996 As of 5 September 2001 located at 143.88 deg W drifting at 2.714 deg W per day. As of 2007 Mar 11 located at 158.94W drifting at 2.690W degrees per day.

1984 August 30 - . 12:41 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. LV Family: Shuttle. Launch Vehicle: Shuttle. LV Configuration: Space Shuttle 41-D.
  • Telstar 3C - . Payload: Telstar 302 [PAM-D]. Mass: 625 kg (1,377 lb). Nation: USA. Agency: ATT. Program: Telstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. Completed Operations Date: 1997-09-05 . USAF Sat Cat: 15237 . COSPAR: 1984-093D. Apogee: 35,948 km (22,337 mi). Perigee: 35,901 km (22,307 mi). Inclination: 5.7000 deg. Period: 1,443.20 min. Released from STS 41D 9/1/84; stationed at 125 deg W. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 86 deg W in 1984-1987; 85 deg W in 1987-1997; 97 deg W in 1997 As of 26 August 2001 located at 148.40 deg W drifting at 1.778 deg W per day. As of 2007 Mar 10 located at 128.46W drifting at 1.794W degrees per day.

1985 June 17 - . 11:33 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. LV Family: Shuttle. Launch Vehicle: Shuttle. LV Configuration: Space Shuttle 51-G.
  • Telstar 3D - . Payload: Telstar 303 / PAM-D. Mass: 630 kg (1,380 lb). Nation: USA. Agency: ATT. Program: Telstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. Completed Operations Date: 1999-02-04 . USAF Sat Cat: 15826 . COSPAR: 1985-048D. Apogee: 35,911 km (22,314 mi). Perigee: 35,888 km (22,299 mi). Inclination: 5.4000 deg. Period: 1,441.90 min. Released by STS 51G 19 June 1985; stationed at 76 deg W. Positioned in geosynchronous orbit at 125 deg W in 1985-1992; 123 deg W in 1992-1996; 120 deg W in 1996-1999 As of 31 August 2001 located at 16.95 deg W drifting at 1.400 deg W per day. As of 2007 Mar 10 located at 6.47W drifting at 1.400W degrees per day.

1993 December 16 - . 00:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas IIAS. LV Configuration: Atlas IIAS AC-108 / Centaur II 8201.
  • Telstar 401 - . Mass: 3,375 kg (7,440 lb). Nation: USA. Agency: ATT. Manufacturer: Lockheed. Program: Telstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 7000. Completed Operations Date: 1997-01-11 . USAF Sat Cat: 22927 . COSPAR: 1993-077A. Apogee: 35,821 km (22,258 mi). Perigee: 35,759 km (22,219 mi). Inclination: 4.3000 deg. Period: 1,436.30 min. Stationed at 97 deg W. 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 with IFR trajectory option. Positioned in geosynchronous orbit at 97 deg W in 1994-1997 As of 5 September 2001 located at 100.42 deg W drifting at 0.039 deg E per day. As of 2007 Mar 10 located at 97.36W drifting at 0.024W degrees per day.

1995 September 24 - . 00:06 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 42L. LV Configuration: Ariane 42L+ V78.
  • Telstar 402R - . Mass: 3,410 kg (7,510 lb). Nation: USA. Agency: ATT. Manufacturer: Lockheed. Program: Telstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 7000. USAF Sat Cat: 23670 . COSPAR: 1995-049A. Apogee: 35,791 km (22,239 mi). Perigee: 35,781 km (22,233 mi). Inclination: 0.0000 deg. Period: 1,436.10 min. Direct TV for continental US. Stationed at 89.0 deg W. Positioned in geosynchronous orbit at 89 deg W in 1995-1999 As of 5 September 2001 located at 88.96 deg W drifting at 0.003 deg W per day. The Telstar 4 (former Telstar 402R) satellite suffered a power failure on September 19 2003 and was a total loss. It was part of AT&T's satellite fleet, later sold to Loral Skynet by 2003 in the process of being sold to Intelsat. As of 2007 Mar 10 located at 116.15W drifting at 0.086W degrees per day.

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