A 3000

3-axis stabilization with momentum wheels, magnetic torquers, Earth sensors and 2 redundant sets of 7 blowdown monopropellant hydrazine thrusters. Solar arrays provide 2800 W, 3 x 24 Ah NiCd batteries. GEO insertion by Star 370B solid rocket motor. 24 C-band transponders (with 4 spares) .

Typical orbit: 35811 km x 35848 km at 1 degrees inclination. Length: 1.63 m (5.34 ft). Maximum Diameter: 1.32 m (4.33 ft). Span: 14.33 m (47.01 ft). Mass: 600 kg (1,320 lb). Main Engine: Star 30C. Associated Launch Vehicle: Ariane 1, Ariane 2/3, Ariane 42P, Ariane 44L, Ariane 44LP, Atlas I, Delta 3000, Delta 7000, H-1, N-2.

• 1981 November 20 - RCA Satcom 4; RCA Satcom 3R - Program: Satcom. Launch Site: Cape Canaveral. Launch Vehicle: Delta 3000. Mass: 1,078 kg (2,376 lb). Perigee: 35,824 km (22,259 mi). Apogee: 35,840 km (22,260 mi). Inclination: 8.20 deg. Period: 1,438.40 min.

  Positioned in geosynchronous orbit at 131 deg W in 1981-1991 As of 3 September 2001 located at 86.96 deg W drifting at 0.634 deg W per day. As of 2007 Mar 11 located at 140.04W drifting at 0.601W degrees per day.

• 1982 January 16 - RCA Satcom 4 - Program: Satcom. Launch Site: Cape Canaveral. Launch Vehicle: Delta 3000. Mass: 1,082 kg (2,385 lb). Perigee: 35,964 km (22,346 mi). Apogee: 35,994 km (22,365 mi). Inclination: 1.90 deg. Period: 1,446.00 min.

  Positioned in geosynchronous orbit at 83 deg W in 1982-1987; 82 deg W in 1987-1991 As of 2 September 2001 located at 171.96 deg E drifting at 2.443 deg W per day. As of 2007 Mar 9 located at 101.04W drifting at 2.479W degrees per day.

• 1982 October 28 - Satcom 5 - Program: Satcom. Launch Site: Cape Canaveral. Launch Vehicle: Delta 3000. Mass: 590 kg (1,300 lb). Perigee: 35,782 km (22,233 mi). Apogee: 35,791 km (22,239 mi). Inclination: 8.10 deg. Period: 1,436.10 min.

  Positioned in geosynchronous orbit at 143 deg W in 1982-1991; 105 deg W in 1992-2007.

• 1983 April 11 - RCA Satcom 6 - Program: Satcom. Launch Site: Cape Canaveral. Launch Vehicle: Delta 3000. Mass: 2,385 kg (5,258 lb). Perigee: 35,851 km (22,276 mi). Apogee: 35,953 km (22,340 mi). Inclination: 7.00 deg. Period: 1,442.00 min.

  Positioned in geosynchronous orbit at 139 deg W in 1983-1991; 131 deg W in 1991-1992 As of 5 September 2001 located at 148.59 deg W drifting at 1.499 deg W per day. As of 2007 Mar 10 located at 90.26E drifting at 1.535W degrees per day.

• 1983 September 8 - RCA Satcom 7 - Program: Satcom. Launch Site: Cape Canaveral. Launch Vehicle: Delta 3000. Mass: 1,121 kg (2,471 lb). Perigee: 35,963 km (22,346 mi). Apogee: 36,095 km (22,428 mi). Inclination: 5.70 deg. Period: 1,448.50 min.

  Positioned in geosynchronous orbit at 72 deg W in 1983-1995 As of 4 September 2001 located at 143.00 deg E drifting at 3.084 deg W per day. As of 2007 Mar 10 located at 40.27E drifting at 3.104W degrees per day.

• 1984 January 23 - Yuri 2A - Program: BS. Launch Site: Tanegashima. Launch Vehicle: N-2. Mass: 670 kg (1,470 lb). Perigee: 36,072 km (22,414 mi). Apogee: 36,191 km (22,488 mi). Inclination: 4.90 deg. Period: 1,453.80 min.

  TV. BS-2a (Yuri-2a). Domestic satellite broadcasting; development of broadcasting satellite technology. Launch 0758 GMT. N launch vehicle flight no 12. Launching organization NASDA. Positioned in geosynchronous orbit at 110 deg E in 1984-1985; 108 deg E in 1985-1987; 110 deg E in 1987-1988 As of 28 August 2001 located at 69.57 deg E drifting at 4.403 deg W per day. As of 2007 Mar 10 located at 153.52W drifting at 4.395W degrees per day.

• 1984 May 23 - Spacenet F1 - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 1. Mass: 705 kg (1,554 lb). Perigee: 35,840 km (22,260 mi). Apogee: 35,897 km (22,305 mi). Inclination: 4.90 deg. Period: 1,440.30 min.

  Stationed at 120 deg W. C, Ku band communications satellite. Positioned in geosynchronous orbit at 120 deg W in 1984-1993; 115 deg E in 1993-on. As of 2 September 2001 located at 165.12 deg E drifting at 0.985 deg W per day. As of 2007 Mar 10 located at 109.23W drifting at 1.077W degrees per day.

• 1984 November 10 - Spacenet F2 - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 2/3. Mass: 705 kg (1,554 lb). Perigee: 35,904 km (22,309 mi). Apogee: 35,962 km (22,345 mi). Inclination: 4.20 deg. Period: 1,443.60 min.

  Stationed at 68 deg W. C, Ku band communications satellite. Positioned in geosynchronous orbit at 69 deg W in 1984-1997; 115 deg E in 1997-1998 As of 5 September 2001 located at 65.20 deg E drifting at 1.887 deg W per day. As of 2007 Mar 9 located at 64.76W drifting at 1.866W degrees per day.

• 1985 May 8 - GStar 1 - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 2/3. Mass: 705 kg (1,554 lb). Perigee: 35,783 km (22,234 mi). Apogee: 35,791 km (22,239 mi). Inclination: 0.10 deg. Period: 1,436.10 min.

  Stationed at 103 deg W. Ku band communications satellite. Positioned in geosynchronous orbit at 103 deg W in 1985-1996; 105 deg W in 1997-1999 As of 5 September 2001 located at 105.33 deg W drifting at 0.011 deg W per day. As of 2007 Mar 9 located at 105.07W drifting at 0.006W degrees per day.

• 1985 September 12 - Spacenet F3 - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 2/3. FAILURE: Geosynchronous orbit injection failure. Third stage igniter cartridge failure was determined to be the most likely cause. Mass: 600 kg (1,320 lb).

• 1986 February 12 - Yuri 2B - Program: BS. Launch Site: Tanegashima. Launch Vehicle: N-2. Mass: 677 kg (1,492 lb). Perigee: 35,996 km (22,366 mi). Apogee: 36,135 km (22,453 mi). Inclination: 2.70 deg. Period: 1,450.40 min.

  Stationed at 117 deg E. BS-2b (Yuri-2b). Domestic satellite broadcasting; development of broadcasting satellite technology. Launching organization NASDA. N launch vehicle flight no 14. Launch time 0755 GMT. Positioned in geosynchronous orbit at 110 deg E in 1986-1991 As of 5 September 2001 located at 13.60 deg W drifting at 3.524 deg W per day. As of 2007 Mar 11 located at 77.04E drifting at 3.551W degrees per day.

• 1986 March 28 - GStar 2 - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 2/3. Mass: 1,140 kg (2,510 lb). Perigee: 35,902 km (22,308 mi). Apogee: 35,943 km (22,333 mi). Inclination: 5.60 deg. Period: 1,443.10 min.

  Ku band communications satellite. Stationed at 70 degrees W. Positioned in geosynchronous orbit at 105 deg W in 1986-1992; 125 deg W in 1992-1997 As of 5 September 2001 located at 148.11 deg W drifting at 1.728 deg W per day. As of 2007 Mar 10 located at 2.39W drifting at 1.699W degrees per day.

• 1988 March 11 - Spacenet F3R - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 2/3. Mass: 1,212 kg (2,672 lb). Perigee: 35,935 km (22,328 mi). Apogee: 35,980 km (22,350 mi). Inclination: 2.40 deg. Period: 1,444.90 min.

  US domestic communications; 87 deg W. C, Ku band communications satellite. Positioned in geosynchronous orbit at 87 deg W in 1988-1997; 83 deg W in 1997-1999 As of 2 September 2001 located at 107.85 deg W drifting at 2.220 deg W per day. As of 2007 Mar 9 located at 153.60E drifting at 2.179W degrees per day.

• 1988 September 8 - GStar 3 - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 2/3. Mass: 1,270 kg (2,790 lb). Perigee: 35,769 km (22,225 mi). Apogee: 35,806 km (22,248 mi). Inclination: 5.30 deg. Period: 1,436.20 min.

  AKM malfunctioned, but orbit achieved using on-board propulsion system. Ku band communications satellite. Positioned in geosynchronous orbit at 93 deg W in 1989-1996; 105 deg W in 1996-1999 As of 5 September 2001 located at 105.39 deg W drifting at 0.005 deg W per day. As of 2007 Mar 9 located at 105.31W drifting at 0.004W degrees per day.

• 1990 August 28 - Yuri 3A - Program: BS. Launch Site: Tanegashima. Launch Vehicle: H-1. Mass: 1,115 kg (2,458 lb). Perigee: 36,157 km (22,466 mi). Apogee: 36,245 km (22,521 mi). Inclination: 3.50 deg. Period: 1,457.30 min.

  Japanese DBS; 110 deg E. Continuation of broadcasting services by BS-2; accommodations to increasing and diversifying demands for broadcasting; establishment of common technology necessary for broadcasting satellite. Launching organization NASDA. Launch time 0905 GMT. BS-3a 'Yuri -3a'. Positioned in geosynchronous orbit at 110 deg E in 1990-1998 As of 2 September 2001 located at 84.62 deg E drifting at 5.278 deg W per day. As of 2007 Mar 10 located at 83.70W drifting at 5.275W degrees per day.

• 1990 November 20 - Satcom C1 - Program: Satcom. Launch Site: Kourou. Launch Vehicle: Ariane 42P. Mass: 1,169 kg (2,577 lb). Perigee: 35,777 km (22,230 mi). Apogee: 35,794 km (22,241 mi). Inclination: 0.10 deg. Period: 1,436.10 min.

  Stationed at 137 deg W. Positioned in geosynchronous orbit at 137 deg W in 1990-1991; 139 deg W in 1991; 137 deg W in 1991-1999 As of 5 September 2001 located at 78.98 deg W drifting at 0.013 deg W per day. As of 2007 Mar 9 located at 151.83E drifting at 3.912W degrees per day.

• 1990 November 20 - GStar 4 - Program: GTE. Launch Site: Kourou. Launch Vehicle: Ariane 42P. Mass: 1,295 kg (2,854 lb). Perigee: 35,785 km (22,235 mi). Apogee: 35,790 km (22,230 mi). Inclination: 0.00 deg. Period: 1,436.10 min.

  Stationed at 125 deg W. Ku band communications satellite. Positioned in geosynchronous orbit at 125 deg W in 1990-1992; 105 deg W in 1992-1999 As of 6 September 2001 located at 104.95 deg W drifting at 0.005 deg W per day. As of 2007 Mar 10 located at 74.47W drifting at 4.077W degrees per day.

• 1991 April 18 - Yuri 3H - Program: BS. Launch Site: Cape Canaveral. Launch Vehicle: Atlas I. FAILURE: RL-10 Centaur engine turbopump failed at T+361 seconds; destroyed by range safety. Mass: 600 kg (1,320 lb). Apogee: 175 km (108 mi).

• 1991 August 25 - Yuri 3B - Program: BS. Launch Site: Tanegashima. Launch Vehicle: H-1. Mass: 1,115 kg (2,458 lb). Perigee: 36,171 km (22,475 mi). Apogee: 36,244 km (22,520 mi). Inclination: 3.20 deg. Period: 1,457.70 min.

  TV; 110 deg E. Positioned in geosynchronous orbit at 110 deg E in 1991-1999 As of 3 September 2001 located at 91.59 deg E drifting at 5.350 deg W per day. As of 2007 Mar 9 located at 152.69E drifting at 5.334W degrees per day.

• 1991 May 29 - Aurora 2 - Launch Site: Cape Canaveral. Launch Vehicle: Delta 7000. Mass: 1,336 kg (2,945 lb). Perigee: 36,125 km (22,446 mi). Apogee: 36,161 km (22,469 mi). Inclination: 1.20 deg. Period: 1,454.40 min.

  Stationed at 139 deg W. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). Positioned in geosynchronous orbit at 139 deg W in 1991-1999 As of 30 August 2001 located at 148.31 deg E drifting at 4.531 deg W per day. As of 2007 Mar 9 located at 2.15E drifting at 4.534W degrees per day.

• 1992 August 31 - Satcom C4 - Program: Satcom. Launch Site: Cape Canaveral. Launch Vehicle: Delta 7000. Mass: 2,000 kg (4,400 lb). Perigee: 35,786 km (22,236 mi). Apogee: 35,789 km (22,238 mi). Inclination: 0.10 deg. Period: 1,436.20 min.

  Stationed at 135 deg W. Positioned in geosynchronous orbit at 135 deg W in 1992-1999 As of 3 September 2001 located at 135.00 deg W drifting at 0.002 deg E per day. As of 2007 Mar 10 located at 164.40W drifting at 4.518W degrees per day.

• 1992 September 10 - Satcom C3 - Program: Satcom. Launch Site: Kourou. Launch Vehicle: Ariane 44LP. Mass: 1,375 kg (3,031 lb). Perigee: 35,784 km (22,235 mi). Apogee: 35,789 km (22,238 mi). Inclination: 0.10 deg. Period: 1,436.10 min.

  Stationed at 131 deg W. Positioned in geosynchronous orbit at 143 deg W in 1992; 131 deg W in 1992-1999 As of 4 September 2001 located at 130.93 deg W drifting at 0.000 deg W per day. As of 2007 Mar 11 located at 79.06W drifting at 0.008W degrees per day.

• 1994 July 8 - Yuri 3N - Program: BS. Launch Site: Kourou. Launch Vehicle: Ariane 44L. Mass: 1,210 kg (2,660 lb). Perigee: 35,777 km (22,230 mi). Apogee: 35,797 km (22,243 mi). Inclination: 0.0500 deg. Period: 1,436.15 min.

  Stationed at 109.67 deg E. Positioned in geosynchronous orbit at 109 deg E in 1994-1999 As of 5 September 2001 located at 109.71 deg E drifting at 0.013 deg W per day. As of 2007 Mar 11 located at 109.92E drifting at 0.008W degrees per day.

• 1995 August 5 - Mugunghwa 1 - Program: Koreasat. Launch Site: Cape Canaveral. Launch Vehicle: Delta 7000. FAILURE: Partial Failure. Mass: 1,459 kg (3,216 lb). Perigee: 35,776 km (22,230 mi). Apogee: 35,796 km (22,242 mi). Inclination: 2.70 deg. Period: 1,436.10 min.

  15 Ku-band transponders; boosted into geosynch orbit by satellite thrusters following Delta failure that left satellite in LEO; unplanned use of satellite propellant cut usable satellite lifetime by approx. 50 percent. Stationed at 116.0 deg E. Stage 1 SRM failure Positioned in geosynchronous orbit at 116 deg E in 1995-1999 As of 5 September 2001 located at 47.22 deg E drifting at 0.022 deg E per day. As of 2007 Mar 9 located at 152.88E drifting at 2.155W degrees per day.

• 1996 January 14 - Koreasat 2 - Program: Koreasat. Launch Site: Cape Canaveral. Launch Vehicle: Delta 7000. Mass: 600 kg (1,320 lb). Perigee: 35,782 km (22,233 mi). Apogee: 35,792 km (22,240 mi). Inclination: 0.00 deg. Period: 1,436.20 min.

  Geostationary at 116.0E. Positioned in geosynchronous orbit at 116 deg E in 1996-2000 As of 5 September 2001 located at 113.02 deg E drifting at 0.017 deg W per day. As of 2007 Mar 11 located at 116.35E drifting at 0.013W degrees per day.

• JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Accessed at: http://msl.jpl.nasa.gov/home.html.

• McDowell, Jonathan, Jonathan's Space Home Page, Harvard University, 1997-present. Jonathan McDowell's complete on-line listing of all objects orbited and over 20,000 rocket launches Accessed at: http://www.planet4589.org/jsr.html.

• Krebs, Gunter, Gunter's Space Page, University of Frankfurt, 1996. Accessed at: http://www.skyrocket.de/space.

• McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. Essential internet newsletter recording worldwide weekly space events. Accessed at: http://www.planet4589.org/jsr.html.

• Wilson, Andrew, editor,, Jane's/Interavia Space Directory, Jane's Information Group, Coulsdon, Surrey, 1992 et al. ISBN: 0710618107. The most comprehensive source of information for current space projects. Too expensive for human beings and most libraries. More at amazon.com...

• Lockheed Martin Coporation, Atlas Family Fact Sheets, September 1998.. Accessed at: http://www.lmco.com/ILS/txtmain/ils_lsysinfo.htm.

• McDowell, Jonathan, Launch Log, October 1998. Jonathan McDowell's complete on-line listing of all objects orbited since Sputnik. Accessed at: http://hea-www.harvard.edu/~jcm/space/log/launch.html.

• USAF Satellite Database, USAF Institute of Technology, 1995. Accessed at: ftp://archive.afit.af.mil/pub/space/.