Spacecraft engaged in research and exploration of the upper atmosphere or outer space.

Typical orbit: 224 km x 868 km at 97 degrees inclination. Mass: 127 kg (279 lb). Associated Launch Vehicle: Scout D.

• 1972 December 16 - Aeros 1 - Launch Site: Vandenberg. Launch Vehicle: Scout D. Mass: 127 kg (279 lb). Perigee: 223 km (138 mi). Apogee: 867 km (538 mi). Inclination: 96.90 deg. Period: 95.60 min.

  Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1974 July 16 - Aeros 2 - Launch Site: Vandenberg. Launch Vehicle: Scout D. Mass: 127 kg (279 lb). Perigee: 224 km (139 mi). Apogee: 869 km (539 mi). Inclination: 97.50 deg. Period: 95.60 min.

  Upper atmospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

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

• 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.

• 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.

• 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.