2MS

Early Kosmos launcher payloads of unknown purpose, possibly from Korolev OKB.

Typical orbit: 204 x 1142 km, 49 deg inclinaton. Mass: 305 kg (672 lb). Associated Launch Vehicle: Kosmos 63S1.

• 1962 April 24 - Cosmos 3 - Program: MS. Launch Site: Kapustin Yar. Launch Vehicle: Kosmos 63S1. Mass: 330 kg (720 lb). Perigee: 216 km (134 mi). Apogee: 707 km (439 mi). Inclination: 49.00 deg. Period: 93.80 min.

  Cosmic ray, radiation data. Investigation of the upper atmosphere and outer space; development of elements in the design of space craft.

• 1962 May 28 - Cosmos 5 - Program: MS. Launch Site: Kapustin Yar. Launch Vehicle: Kosmos 63S1. Mass: 280 kg (610 lb). Perigee: 192 km (119 mi). Apogee: 1,578 km (980 mi). Inclination: 49.10 deg. Period: 102.60 min.

  Monitored artificial radiation. Investigation of the upper atmosphere and outer space; development of elements in the design of space craft.

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

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

• 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.