Encyclopedia Astronautica
Spacebus 300


French communications satellite. 5 launches, 1987.11.21 (TVSAT 1) to 1990.07.24 (TDF 2). 3-axis stabilized using bipropellant thrusters (1220 kg propellant - unified with apogee insertion and maneuvering propulsion) and momentum wheels.

Solar arrays generate 3.0 kW at end of life.

Gross mass: 1,318 kg (2,905 lb).
Payload: 250 kg (550 lb).
Height: 7.10 m (23.20 ft).
Span: 19.30 m (63.30 ft).
Thrust: 392 N (88 lbf).
First Launch: 1987.11.21.
Last Launch: 1990.07.24.
Number: 5 .

More... - Chronology...


Associated Countries
See also
  • Ariane First successful European commercial launch vehicle, developed from L3S Europa launch vehicle replacement design. Development of the Ariane 1 was authorised in July 1973, took eight years, and cost 2 billion 1986 Euros. More...

Associated Launch Vehicles
  • Ariane French orbital launch vehicle. First successful European commercial launch vehicle, developed from L3S Europa launch vehicle replacement design. Development of the Ariane 1 was authorised in July 1973, took eight years, and cost 2 billion 1986 Euros. More...
  • Ariane 2/3 French orbital launch vehicle. Improved version of the Ariane 1. It featured increased thrust first and second stage engines, a 25% stretched third stage, 4 seconds specific impulse improvement in the third stage, a larger internal payload fairing volume, and introduced the Sylda payload carrier for dual payloads. The Ariane 3 version added two solid rocket motor strap-ons. Development was authorised in July 1980 and had a total cost of 144 million 1986 Euros. More...
  • Ariane 2 French orbital launch vehicle. Basic three stage vehicle without solid rocket motor strap-ons. Payload to geosynchronous transfer orbit was 2,175 kg. More...
  • Ariane 44LP French orbital launch vehicle. Ariane 4 with 2 liquid rocket + 2 solid rocket strap-ons. More...
  • Ariane 44L French orbital launch vehicle. Ariane 4 with 4 liquid rocket strap-ons. More...

Associated Manufacturers and Agencies
Associated Programs
  • TDF French direct broadcasting communications satellite network More...
  • TELE Television, business communications satellite networ for Nordic countries. High power telecommunications satellites provided both direct TV broadcasting and data communications. More...

Associated Propellants
  • N2O4/MMH Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Monomethylhydrazine (CH3NHNH2) is a storable liquid fuel that found favour in the United States for use in orbital spacecraft engines. Its advantages in comparison to UDMH are higher density and slightly higher performance. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.
  • McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: here.

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...

Spacebus 300 Chronology


1987 November 21 - . 02:19 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 2. LV Configuration: Ariane 2 V20.
  • TVSAT 1 - . Payload: TV-Sat 1. Mass: 2,077 kg (4,579 lb). Nation: Germany. Agency: Bundespost. Program: TVSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 300. Completed Operations Date: 1989-02-01 . USAF Sat Cat: 18570 . COSPAR: 1987-095A. Apogee: 36,151 km (22,463 mi). Perigee: 36,066 km (22,410 mi). Inclination: 4.3000 deg. Period: 1,452.60 min. West German communications; solar panel failed to deploy making spacecraft unusable. Because of a malfunction of the solar generator, the satellite is being used only for technical tests. Geostationary position 19 W. Launch by Ariane-2 flight no. 20. Due to a malfunction of the solar generator, TV-SAT 1 was taken out of commission and sen t to a so-called parking orbit beyond the geostationary orbit. Semi-major axis 42485.605 km. Eccentricity 0.00116. Inc 0.716, Arg of perigee 216.66, RA 76.77, Mean anomaly 47.1 Mean drift -4.071 deg/day, E long 350.617, latitude -0.713. Positioned in geosynchronous orbit at 18 deg W in 1988 As of 5 September 2001 located at 76.53 deg W drifting at 4.886 deg W per day. As of 2007 Mar 11 located at 169.62W drifting at 4.874W degrees per day.

1988 October 28 - . 02:17 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA1. LV Family: Ariane. Launch Vehicle: Ariane 2. LV Configuration: Ariane 2 V26.
  • TDF-1 - . Payload: TDF 1. Mass: 2,136 kg (4,709 lb). Nation: France. Agency: France Telecom. Program: TDF. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 300. Completed Operations Date: 1996-10-04 . USAF Sat Cat: 19621 . COSPAR: 1988-098A. Apogee: 36,129 km (22,449 mi). Perigee: 36,051 km (22,401 mi). Inclination: 4.8000 deg. Period: 1,451.60 min. French DBS; 19 deg W. Direct broadcasting satellite. French registration: TDF-1, 1988-5-B. Positioned in geosynchronous orbit at 19 deg W in 1988-1996 As of 1 September 2001 located at 139.53 deg W drifting at 3.885 deg W per day. As of 2007 Mar 5 located at 16.35W drifting at 3.870W degrees per day.

1989 April 2 - . 02:28 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA1. LV Family: Ariane. Launch Vehicle: Ariane 2. LV Configuration: Ariane 2 V30.
  • TELE-X - . Payload: Tele X. Mass: 2,142 kg (4,722 lb). Nation: Sweden. Agency: NSAB. Program: TELE. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 300. Completed Operations Date: 1998-01-13 . USAF Sat Cat: 19919 . COSPAR: 1989-027A. Apogee: 36,128 km (22,448 mi). Perigee: 36,061 km (22,407 mi). Inclination: 4.3000 deg. Period: 1,451.80 min. TV, business communications for Nordic countries; 5 deg E. High power telecommunications satellite with a dual mission; direct TV broadcasting and data communications. Four active transponders with two redundant; power output 200 W per transponder. Coverage area - East Nordic coverage zone as defined by ITU (WARC -77). Mission period estimated to be 6 to 8 years. Position 5 deg E. Positioned in geosynchronous orbit at 5 deg E in 1989-1998 As of 28 August 2001 located at 138.62 deg W drifting at 3.929 deg W per day. As of 2007 Mar 10 located at 132.37W drifting at 3.933W degrees per day.

1989 August 8 - . 23:25 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44LP. LV Configuration: Ariane 44LP V33.
  • TVSAT 2 - . Mass: 2,130 kg (4,690 lb). Nation: Germany. Agency: Bundespost. Program: TVSAT. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 300. Completed Operations Date: 1999-09-12 . USAF Sat Cat: 20168 . COSPAR: 1989-062A. Apogee: 35,951 km (22,338 mi). Perigee: 35,863 km (22,284 mi). Inclination: 3.3000 deg. Period: 1,442.20 min. TV services to West Germany; 19 deg W. Direct broadcasting satellite. Position 19 deg W. Ariane 4, flight no 33. Positioned in geosynchronous orbit at 19 deg W in 1989-1995; 1 deg W in 1995-1998; 12 deg W in 1998-1999 As of 31 August 2001 located at 29.41 deg W drifting at 1.503 deg W per day. As of 2007 Mar 9 located at 150.44E drifting at 1.494W degrees per day.

1990 July 24 - . 22:25 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44L. LV Configuration: Ariane 44L V37.
  • TDF 2 - . Mass: 2,096 kg (4,620 lb). Nation: France. Agency: France Telecom. Program: TDF. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 300. Completed Operations Date: 1999-05-26 . USAF Sat Cat: 20705 . COSPAR: 1990-063A. Apogee: 36,435 km (22,639 mi). Perigee: 36,085 km (22,422 mi). Inclination: 3.1000 deg. Period: 1,460.40 min. French DBS; 19 deg W. Direct broadcasting satellite. Registration 1990-2-B. Positioned in geosynchronous orbit at 19 deg W in 1990-1997; 36 deg E in 1997-1999 As of 5 September 2001 located at 62.59 deg E drifting at 6.006 deg W per day. As of 2007 Mar 9 located at 98.15W drifting at 5.991W degrees per day.

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