Package Attitude Control; semi-active gravity gradient stabilization tests.

Typical orbit: 486 km x 552 km at 33 degrees inclination. Mass: 120 kg (260 lb). Associated Launch Vehicle: Delta N.

• 1969 August 9 - PAC 1 - Launch Site: Cape Canaveral. Launch Vehicle: Delta N. Mass: 120 kg (260 lb). Perigee: 486 km (301 mi). Apogee: 552 km (342 mi). Inclination: 32.90 deg. Period: 95.00 min.

  Package Attitude Control; semi-active gravity gradient stabilization tests. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• 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.

• 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.

• 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.