Encyclopedia Astronautica
Brasilsat


Brazilian communications.

More... - Chronology...


Associated Countries
Associated Spacecraft
  • HS 376 American communications satellite. 56 launches, 1980.11.15 (SBS 1) to 2003.09.27 (E-Bird). Mass 654 kg at beginning-of-life in geosynchronous orbit. Spin stabilized at 50 rpm by 4 hydrazine thrusters with 136 kg propellant. More...
  • HS 376W American communications satellite. 4 launches, 1994.08.10 (Brasilsat B1) to 2000.08.17 (Brasilsat B-4). Based on Hughes HS-376, single antenna on despun platform, spin stabilized, hydrazine thrusters, body mounted solar cells provide 982 W BOL. More...

Associated Launch Vehicles
  • Ariane 3 French orbital launch vehicle. Four stage vehicle consisting of 2 x PAP solid rocket boosters + Ariane 2 core. More...
  • Ariane 44LP French orbital launch vehicle. Ariane 4 with 2 liquid rocket + 2 solid rocket strap-ons. More...
  • Ariane 5ECA French orbital launch vehicle, first version of the evolved Ariane 5. The solid booster motors propellant load was increased by 2.43 tonnes and the case was welded, for a weight saving in dry mass of 1.9 tonnes. The core was powered by an improved Vulcain 2 engine. The oxygen-rich cycle of the engine allowed the oxygen bulkhead to be moved within the stage, resulting in a 15.2 tonne increase in propellant in the core. A new Lox/LH2 upper stage, using the HM7B engine and oxygen tank from the Ariane 4 series, replaced the storable propellant EPS stage of earlier models. The result was an increase in payload to geoscynchronous transfer orbit from 6 tonnes to 10.5 tonnes. More...

Associated Manufacturers and Agencies
Associated Launch Sites
  • Kourou After the agreement with newly independent Algeria for France to evacuate their launch sites in that country, a location near Biscarosse was selected for French missile testing. However since only launches westwards across the Bay of Biscay could be made from this site, it was unsuitable for France's Diamant orbital launch vehicle. After reviewing 14 potential sites, a location in the South American French colony of Guiana was selected. This would allow over-water launches to a tremendous range of possible orbital inclinations -- from -100.5 deg to 1.5 deg. Being near the equator, it would provide the maximum assist from the earth's rotation for launches into equatorial orbits. The decision was formalized in April 1964 and in July 1966 ELDO chose the site for future launches of the Europa II launch vehicle. More...

Brasilsat 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.

1994 August 10 - . 23:05 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44LP. LV Configuration: Ariane 44LP+ V66.
  • Brasilsat B1 - . Mass: 1,765 kg (3,891 lb). Nation: Brazil. Agency: Tele Mex. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376W. USAF Sat Cat: 23199 . COSPAR: 1994-049A. Apogee: 35,791 km (22,239 mi). Perigee: 35,782 km (22,233 mi). Inclination: 0.0300 deg. Period: 1,436.12 min. 28 C-band transponders, 1 X-band transponder (military). Stationed at 70.05 deg W. Positioned in geosynchronous orbit at 70 deg W in 1994-1999 As of 3 September 2001 located at 70.00 deg W drifting at 0.003 deg W per day. As of 2007 Mar 11 located at 71.44W drifting at 0.304W 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..

1998 February 4 - . 23:29 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44LP. LV Configuration: Ariane 44LP-3 V105.
  • Brasilsat B3 - . Nation: Brazil. Agency: Embratel. Manufacturer: El Segundo. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376W. USAF Sat Cat: 25152 . COSPAR: 1998-006A. Apogee: 35,795 km (22,241 mi). Perigee: 35,780 km (22,230 mi). Inclination: 0.0000 deg. Period: 1,436.10 min. Summary: Geostationary at 84.0 degrees W. Positioned in geosynchronous orbit at 84 deg W in 1998-1999 As of 3 September 2001 located at 84.03 deg W drifting at 0.009 deg W per day. As of 2007 Mar 9 located at 84.07W drifting at 0.013W degrees per day..

2000 August 17 - . 23:16 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44LP. LV Configuration: Ariane 44LP-3 V131.
  • Brasilsat B-4 - . Mass: 1,757 kg (3,873 lb). Nation: Brazil. Agency: Embratel. Manufacturer: El Segundo. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376W. USAF Sat Cat: 26469 . COSPAR: 2000-046A. Apogee: 35,799 km (22,244 mi). Perigee: 35,776 km (22,230 mi). Inclination: 0.1000 deg. Period: 1,436.10 min. Brasilsat B4 was a C-band geosynchronous communications satellite, replacing the 15-year-old Brasilsat A2 for the Brazilian communications company Embratel. Positioned in geosynchronous orbit at 75 deg W in 2000. As of 2 September 2001 located at 92.03 deg W drifting at 0.011 deg W per day. As of 2007 Mar 9 located at 70.08W drifting at 0.020W degrees per day.

2007 November 14 - . 22:06 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5ECA. LV Configuration: Ariane 5ECA V179 (538).
  • Star One C1 - . Nation: Brazil. Agency: Embratel. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 3000. USAF Sat Cat: 32293 . COSPAR: 2007-056A. Apogee: 35,780 km (22,230 mi). Perigee: 35,794 km (22,241 mi). Inclination: 0.0000 deg. Period: 1,436.10 min. Summary: Formerly named Brasilsat C1, the satellite was launched as part of a joint venture between several South American countries with Brazil's Embratel taking a lead role..

2008 April 18 - . 22:17 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5ECA. LV Configuration: Ariane 5ECA V539.
  • Star One C2 - . Payload: Spacebus 3000B3. Nation: Brazil. Agency: Arianespace. Program: Brasilsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 3000. USAF Sat Cat: 32768 . COSPAR: 2008-018B. Apogee: 35,790 km (22,230 mi). Perigee: 35,785 km (22,235 mi). Inclination: 0.1000 deg. Period: 1,436.10 min. Summary: Communications satellite owned by Brazilian operator Star One with C, Ku and X-band transponders.

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