Spacecraft engaged in practical applications and uses of space technology such as weather or communication.

Typical orbit: 1154 km x 1193 km at 90 degrees inclination. Mass: 170 kg (370 lb). Associated Launch Vehicle: Scout G.

• 1981 May 15 - Nova 1 - Program: Transit. Launch Site: Vandenberg. Launch Vehicle: Scout G. Perigee: 1,165 km (723 mi). Apogee: 1,185 km (736 mi). Inclination: 90.20 deg. Period: 108.90 min.

  Improved Transit.

• 1984 October 12 - Nova 3 - Program: Transit. Launch Site: Vandenberg. Launch Vehicle: Scout G. Mass: 165 kg (363 lb). Perigee: 1,152 km (715 mi). Apogee: 1,200 km (700 mi). Inclination: 89.90 deg. Period: 108.90 min.

  Improved Transit. Pulsed plasma engine.

• 1988 June 16 - Nova 2 - Program: Transit. Launch Site: Vandenberg. Launch Vehicle: Scout G. Mass: 174 kg (383 lb). Perigee: 1,154 km (717 mi). Apogee: 1,198 km (744 mi). Inclination: 90.10 deg. Period: 108.90 min.

  Improved Transit. Pulsed plasma thruster

• 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.