Encyclopedia Astronautica
Telebras


Brazilian agency. Telebras, Brazil.

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

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Telebras Chronology


1985 February 8 - . 23:22 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA1. LV Family: Ariane. Launch Vehicle: Ariane 3. LV Configuration: Ariane 3 V12.
  • Brasilsat A1 - . Mass: 671 kg (1,479 lb). Nation: Brazil. Agency: Telebras. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. USAF Sat Cat: 15561 . COSPAR: 1985-015B. Apogee: 35,999 km (22,368 mi). Perigee: 35,983 km (22,358 mi). Inclination: 5.9000 deg. Period: 1,446.60 min. Stationed at 65 deg W. Brazilsat 1 & 2 provide telecommunications services to Brazil. Canada's Spar Aerospace was awarded a $125 million contract to build, under license, two satellites based on Hughes' HS-376 design (similar to Anik D). Brazilsat 1 & 2 were the first two elements of Brazil's national Sistema Barasilero de Telecommunicacoes por Satelite (SBTS) network. Spacecraft: Based on Hughes HS-376, single antenna on despun platform, spin stabilised, hydrazine thrusters, body mounted solar cells provide 982 W BOL. Payload: 24 C-band transponders with 6 spares, 10 W TWTA, EIRP >34 dBW over most of Brazilian territory
    Financial/Operational:
    Contract issued in 1990 for 2 units HS-376W. B1-B2 have dedicated transponders for government use. Positioned in geosynchronous orbit at 65 deg W in 1985-1994; 63 deg W in 1994-1996; 79 deg W in 1996-1998; 144 deg W in 1998-1999 As of 5 September 2001 located at 143.96 deg W drifting at 0.005 deg E per day. As of 2007 Mar 9 located at 145.69E drifting at 2.591W degrees per day.

1986 March 28 - . 23:30 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 3. LV Configuration: Ariane 3 V17.
  • Brasilsat A2 - . Mass: 1,243 kg (2,740 lb). Nation: Brazil. Agency: Telebras. Manufacturer: El Segundo. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. USAF Sat Cat: 16650 . COSPAR: 1986-026B. Apogee: 35,793 km (22,240 mi). Perigee: 35,781 km (22,233 mi). Inclination: 4.6000 deg. Period: 1,436.10 min. Stationed at 105 deg W. Brazilsat 1 & 2 provide telecommunications services to Brazil. Canada's Spar Aerospace was awarded a $125 million contract to build, under license, two satellites based on Hughes' HS-376 design (similar to Anik D). Brazilsat 1 & 2 were the first two elements of Brazil's national Sistema Barasilero de Telecommunicacoes por Satelite (SBTS) network. Spacecraft: Based on Hughes HS-376, single antenna on despun platform, spin stabilised, hydrazine thrusters, body mounted solar cells provide 982 W BOL. Payload: 24 C-band transponders with 6 spares, 10 W TWTA, EIRP >34 dBW over most of Brazilian territory
    Financial/Operational:
    Contract issued in 1990 for 2 units HS-376W. B1-B2 have dedicated transponders for government use. Positioned in geosynchronous orbit at 70 deg W in 1986-1995; 92 deg W in 1995-1999 As of 4 September 2001 located at 62.91 deg W drifting at 0.007 deg W per day. As of 2007 Mar 7 located at 32.58W drifting at 2.263W degrees per day.

1995 March 28 - . 23:14 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44LP. LV Configuration: Ariane 44LP+ V71.
  • Brasilsat B2 - . Mass: 1,780 kg (3,920 lb). Nation: Brazil. Agency: Telebras. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376W. USAF Sat Cat: 23536 . COSPAR: 1995-016A. Apogee: 35,793 km (22,240 mi). Perigee: 35,782 km (22,233 mi). Inclination: 0.1000 deg. Period: 1,436.10 min. Summary: Stationed at 65.1 deg W. Positioned in geosynchronous orbit at 65 deg W in 1995-1999 As of 5 September 2001 located at 65.06 deg W drifting at 0.022 deg W per day. As of 2007 Mar 11 located at 65.05W drifting at 0.012W degrees per day..

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