Copernicus, formerly Orbiting Astronomical Observatory 3 (OAO-3)
Located in a nearly circular orbit around Earth
- Launch date
- August 21, 1972
- Launched by
- Atlas-Centaur
- Launch location
- Cape Canaveral
- Mission duration
- 9.5 years, deorbited February 1981
- Light observed
- Ultraviolet, X-ray
- Website
- Copernicus's homepage