| Acronym | Meaning |
| OSSE | Oriented Scintillation Spectrometer Experiment |
| DM | Dark Matter |
| CITE | Cargo Integration Test Equipment |
| ANSI | American National Standards Institute |
| PPM | Positions And Proper Motions (catalog) |
| SEP | Societe Europeenne De Propulsion |
| DRSS | DATA Relay Satellite System |
| NASM | National Air And Space Museum |
| VRM | Venus Radar Mapper |
| PLBD | Payload Bay Doors |