Encyclopedia Astronautica
BSAT


Japanese communications.

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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...
  • Star bus American communications satellite bus. Operational, first launch 1997.11.12 (Cakrawarta 1). The Orbital Star bus was designed for reliable and robust performance in a variety of LEO and GEO missions. More...

Associated Launch Vehicles
  • Ariane 44LP French orbital launch vehicle. Ariane 4 with 2 liquid rocket + 2 solid rocket strap-ons. More...
  • Ariane 44P French orbital launch vehicle. Ariane 4 with 4 solid rocket strap-ons. More...
  • Ariane 5G French orbital launch vehicle. Initial version of the Ariane 5, a bit too large for the main commercial geosynchronous communications satellite payloads. More...

Associated Manufacturers and Agencies
  • OSC American manufacturer of rockets, spacecraft, and rocket engines. Orbital Sciences Corporation, USA. More...
  • Cannes French manufacturer of spacecraft. Cannes, France. More...
  • BSAT Japanese agency. Broadcasting Satellite System Corporation, Tokyo, Japan. More...
  • Alenia Italian manufacturer of rockets and spacecraft. Alenia Spazio, Italy. More...

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...

BSAT Chronology


1997 April 16 - . 23:08 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44LP. LV Configuration: Ariane 44LP V95.
  • BSAT 1a - . Nation: Japan. Agency: BSAT. Manufacturer: El Segundo. Program: BSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. USAF Sat Cat: 24769 . COSPAR: 1997-016B. Apogee: 35,787 km (22,236 mi). Perigee: 35,786 km (22,236 mi). Inclination: 0.0000 deg. Period: 1,436.20 min. Summary: Geosynchronous. Stationed over 110.0E Positioned in geosynchronous orbit at 110 deg E in 1997-1999 As of 4 September 2001 located at 109.56 deg E drifting at 0.018 deg W per day. As of 2007 Mar 10 located at 109.63E drifting at 0.008W degrees per day..

1998 April 28 - . 22:53 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44P. LV Configuration: Ariane 44P V108.
  • BSAT 1B - . Nation: Japan. Agency: BSAT. Manufacturer: El Segundo. Program: BSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: HS 376. USAF Sat Cat: 25312 . COSPAR: 1998-024B. Apogee: 35,788 km (22,237 mi). Perigee: 35,787 km (22,236 mi). Inclination: 0.0000 deg. Period: 1,436.20 min. Summary: Geostationary at 109.9 degrees E. Positioned in geosynchronous orbit at 110 deg E in 1998-1999 As of 5 September 2001 located at 109.63 deg E drifting at 0.019 deg W per day. As of 2007 Mar 10 located at 109.75E drifting at 0.009W degrees per day..

2001 March 8 - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5G. LV Configuration: Ariane 5G V140 509.
  • BSAT-2a - . Mass: 3,050 kg (6,720 lb). Nation: Japan. Agency: BSAT. Manufacturer: Cannes. Program: BSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: Star bus. USAF Sat Cat: 26720 . COSPAR: 2001-011B. Apogee: 35,807 km (22,249 mi). Perigee: 35,764 km (22,222 mi). Inclination: 0.1000 deg. Period: 1,436.10 min. BSAT-2a was a Japanese geosynchronous communications spacecraft and the second Orbital STAR-class television broadcasting satellite. Its launch mass was 1317 kg; dry mass was 535 kg. The satellite had a Thiokol Star 30CBP solid apogee motor. The new BSTAR STAR-class satellites are a new design replacing the earlier Starbus type satellite of which only one (Cakrawarta 1) was launched. BSAT Corp. (Broadcasting Satellite System Corp.) earlier launched HS-376 satellites BSAT 1a and 1b, replacing the government's BS series which began Japanese direct broadcast services in 1978. The satellite was to be parked over 110 deg-E longitude to provide direct-to-home voice, video and internet communications. Positioned in geosynchronous orbit at 110 deg E in 2001 As of 5 September 2001 located at 109.82 deg E drifting at 0.018 deg W per day. As of 2007 Mar 11 located at 109.92E drifting at 0.009W degrees per day.

2001 July 12 - . 21:58 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5G. LV Configuration: Ariane 5G V142 510.
  • BSAT-2b - . Mass: 3,105 kg (6,845 lb). Nation: Japan. Agency: BSAT. Manufacturer: Alenia. Program: BSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: Star bus. USAF Sat Cat: 26864 . COSPAR: 2001-029B. Apogee: 17,400 km (10,800 mi). Perigee: 659 km (409 mi). Inclination: 2.9000 deg. Period: 317.20 min. BSAT-2b was planned as a geosynchronous television broadcast satellite for the Japanese B-SAT company. It used Orbital's Star 1 bus and had a launch mass of 1298 kg. It carried a Thiokol Star 30 solid apogee motor and a set of station-keeping thrusters with 200 kg of propellant. A propulsion problem in the final stage of rocket stranded the satellite at a much lower altitude than planned. Since BSAT 2B carried only a soild propellant apogee kick motor, it was unable to maneuver itself to a useful orbit.

2003 June 11 - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5G. LV Configuration: Ariane 5G V161.
  • BSAT-2c - . Payload: Star 1. Mass: 1,298 kg (2,861 lb). Nation: Japan. Agency: BSAT. Manufacturer: OSC. Program: BSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: Star bus. USAF Sat Cat: 27831 . COSPAR: 2003-028B. Apogee: 35,802 km (22,246 mi). Perigee: 35,771 km (22,227 mi). Inclination: 0.0000 deg. Period: 1,436.10 min. Summary: As of 2007 Mar 9 located at 155.98E drifting at 0.008W degrees per day..

2007 August 14 - . 23:44 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5ECA. LV Configuration: Ariane 5ECA V177 (537).
  • BSAT-3A - . Payload: A2100A. Mass: 1,967 kg (4,336 lb). Nation: Japan. Agency: BSAT. Manufacturer: Lockheed. Program: BSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 2100. USAF Sat Cat: 32019 . COSPAR: 2007-036B. Apogee: 35,826 km (22,261 mi). Perigee: 35,746 km (22,211 mi). Inclination: 0.1000 deg. Period: 1,436.00 min. Summary: Satllite launched for the Japan Broadcasting Satellite Systems Corp. (BSAT) with a Ku-band television payload. Mass 930 kg dry..

2010 October 28 - . 21:51 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5ECA.
  • Bsat 3B - . Payload: A2100A. Mass: 2,060 kg (4,540 lb). Nation: Japan. Program: BSAT. Class: Communications. Type: Communications satellite. Spacecraft: AS 2100. USAF Sat Cat: 37207 . COSPAR: 2010-056B. Apogee: 35,801 km (22,245 mi). Perigee: 35,774 km (22,228 mi). Inclination: 0.1000 deg. Period: 1,436.10 min.

2011 August 6 - . 22:52 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5ECA.
  • BSAT-3C - . Payload: A2100A. Nation: Japan. Program: BSAT. Class: Communications. Type: Communications satellite. Spacecraft: AS 2100. USAF Sat Cat: 37776 . COSPAR: 2011-041B. Apogee: 35,791 km (22,239 mi). Perigee: 35,782 km (22,233 mi). Inclination: 0.1000 deg. Period: 1,436.10 min. Summary: Japan's Broadcast Satellite Systems Corporation communications satellite..

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