DS-U2-GK Credit - Yuzhnoye

Conducted complex geophysical studies of the upper atmosphere. Air density, auroral investigations.

Typical orbit: 206 km x 618 km at 71 degrees inclination. Mass: 350 kg (770 lb). Associated Launch Vehicle: Kosmos 11K63.

• 1968 December 19 - Cosmos 261 - Program: DS. Launch Site: Plesetsk. Launch Vehicle: Kosmos 11K63. Mass: 347 kg (765 lb). Perigee: 206 km (128 mi). Apogee: 637 km (395 mi). Inclination: 71.20 deg. Period: 93.00 min.

  Conducted complex geophysical studies of the upper atmosphere, including aiir density and auroral investigations.

• 1970 June 13 - Cosmos 348 - Program: DS. Launch Site: Plesetsk. Launch Vehicle: Kosmos 11K63. Mass: 357 kg (787 lb). Perigee: 205 km (127 mi). Apogee: 598 km (371 mi). Inclination: 71.00 deg. Period: 92.50 min.

  Conducted complex geophysical studies of the upper atmosphere. Air density, auroral investigations.

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

• 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.