| Acronym | Meaning |
| FOS | Faint Object Spectrograph |
| ORFEUS | Orbiting And Retrievable Far And Extreme Ultraviolet Spectrometer |
| CRAF | Comet Rendezvous/Asteroid Flyby |
| DSCS | Defense Satellite Communications System |
| ICE | International Cometary Explorer |
| UIT | Ultraviolet Imaging Telescope |
| MLS | Microwave Limb Sounder |
| ALPO | Association Of Lunar And Planetary Observers |
| HRI | High Resolution Imager |
| ML | Mobile Launcher |