DS-U2-I Credit - Yuzhnoye

Studied the influence of the ionosphere on passing VLF radio waves.

Typical orbit: 213 km x 1310 km at 48 degrees inclination. Mass: 300 kg (660 lb). Associated Launch Vehicle: Kosmos 11K63.

• 1966 May 24 - Cosmos 119 - Program: DS. Launch Site: Kapustin Yar. Launch Vehicle: Kosmos 11K63. Mass: 250 kg (550 lb). Perigee: 209 km (129 mi). Apogee: 1,278 km (794 mi). Inclination: 48.40 deg. Period: 99.70 min.

  Studied the influence of the ionosphere on passing VLF radio waves.

• 1967 February 14 - Cosmos 142 - Program: DS. Launch Site: Kapustin Yar. Launch Vehicle: Kosmos 11K63. Mass: 315 kg (694 lb). Perigee: 216 km (134 mi). Apogee: 1,320 km (820 mi). Inclination: 48.40 deg. Period: 100.10 min.

  Studied the influence of the ionosphere on passing VLF radio waves.

• 1968 December 14 - Cosmos 259 - Program: DS. Launch Site: Kapustin Yar. Launch Vehicle: Kosmos 11K63. Mass: 325 kg (716 lb). Perigee: 215 km (133 mi). Apogee: 1,331 km (827 mi). Inclination: 48.40 deg. Period: 100.20 min.

  Studied the influence of the ionosphere on passing VLF radio waves.

• 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.

• Agapov, V, Novosti Kosmonavtiki, "K zapusku pervovo ISZ serii 'DS'", 1997, Issue 6.