STS-51-I Credit - NASA

Typical orbit: 35781 km x 35794 km at 0 degrees inclination. Mass: 1,280 kg (2,820 lb). Associated Launch Vehicle: Ariane 44LP, Delta 7000, Shuttle.

• 1985 August 27 - ASC-1 - Program: GTE. Launch Site: Cape Canaveral. Launch Vehicle: Shuttle. Mass: 1,271 kg (2,802 lb). Perigee: 35,778 km (22,231 mi). Apogee: 35,796 km (22,242 mi). Inclination: 0.00 deg. Period: 1,436.10 min.

  Released by STS 51I 8/27/85; stationed at 81 deg E. C, Ku band communications satellite. Positioned in geosynchronous orbit at 128 deg W in 1985-1994 As of 5 September 2001 located at 99.97 deg W drifting at 0.156 deg W per day. As of 2007 Mar 10 located at 119.21W drifting at 0.126W degrees per day.

• 1988 June 15 - Panamsat 1 - Program: Panamsat. Launch Site: Kourou. Launch Vehicle: Ariane 44LP. Mass: 1,220 kg (2,680 lb). Perigee: 36,028 km (22,386 mi). Apogee: 36,043 km (22,396 mi). Inclination: 1.20 deg. Period: 1,448.90 min.

  Stationed at 45 deg W. Positioned in geosynchronous orbit at 45 deg W in 1988-1999 As of 5 September 2001 located at 139.29 deg E drifting at 3.164 deg W per day. As of 2007 Mar 11 located at 114.72W drifting at 3.187W degrees per day.

• 1991 April 13 - ASC-2 / Spacenet F4 - Program: GTE. Launch Site: Cape Canaveral. Launch Vehicle: Delta 7000. Mass: 1,350 kg (2,970 lb). Perigee: 35,780 km (22,230 mi). Apogee: 35,794 km (22,241 mi). Inclination: 0.00 deg. Period: 1,436.20 min.

  Commercial business communications; stationed at 101 deg W. C, Ku band communications satellite. Positioned in geosynchronous orbit at 101 deg W in 1991-1999; 81 deg W in 2000. As of 6 September 2001 located at 172.04 deg E drifting at 0.007 deg W per day. As of 2007 Mar 9 located at 34.51E drifting at 2.539W degrees per day.

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

• 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.

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

• 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.