Business communications. Launching organization NASDA (National Space Development Agency of Japan). N launch vehicle. Osaki launch site, NASDA Tanegashima Space Center, Kagoshima, Japan. Geostationary. Establishment of domestic satellite telecommunications network mainly for natural disaster, emergency and for remote islands using submillimeter wavelength and microwavelength signals. Development of the technology of communications satellite.

Typical orbit: 36089 km x 36144 km at 5 degrees inclination. Mass: 720 kg (1,580 lb). Associated Launch Vehicle: N-2.

• 1983 August 5 - Sakura 2B - Program: CS. Launch Site: Tanegashima. Launch Vehicle: N-2. Mass: 670 kg (1,470 lb). Perigee: 36,191 km (22,488 mi). Apogee: 36,210 km (22,490 mi). Inclination: 5.10 deg. Period: 1,457.30 min.

  CS-2b (Sakura 2b). Launch time 2029 GMT. Launching organization NASDA (National Space Development Agency of Japan). N launch vehicle flight no. 11 (N-II launch vehicle). Domestic satellite communications; development of communications satellite technolog y. Positioned in geosynchronous orbit at 136 deg E in 1983-1989; 128 deg E in 1989-1990 As of 4 September 2001 located at 154.41 deg E drifting at 5.251 deg W per day. As of 2007 Mar 10 located at 13.72E drifting at 5.257W degrees per day.

• 1983 February 4 - Sakura 2A - Program: CS. Launch Site: Tanegashima. Launch Vehicle: N-2. Mass: 772 kg (1,701 lb). Perigee: 35,994 km (22,365 mi). Apogee: 36,070 km (22,410 mi). Inclination: 10.60 deg. Period: 1,448.70 min.

  Business communications. Launch time 0837 GMT. Launching organization NASDA (National Space Development Agency of Japan). N launch vehicle No. 10(F) (N-II launch vehicle). Osaki launch site, NASDA Tanegashima Space Center, Kagoshima, Japan. Geostationary position 132 deg E. Estab lishment of domestic satellite telecommunications network mainly for natural disaster, emergency and for remote islands using submillimetre wavelength and microwavelength signals. Development of the technology of communications satellite. Positioned in geosynchronous orbit at 132 deg E in 1983-1988; 128 deg E in 1988-1990 As of 30 August 2001 located at 140.81 deg E drifting at 3.111 deg W per day. As of 2007 Mar 10 located at 31.02W drifting at 3.113W degrees per day.

• 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.

• 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.