| Acronym | Meaning |
| SRON | Space Research Organization Of The Netherlands |
| ATR | Alliance For Transportation Research |
| AMU | Atomic Mass Unit |
| NIC | Network Interface Card |
| OMO | Orbiting Meteorological Observatory |
| FEP | Front End Processor |
| PEM | Pacific Exploratory Mission |
| MARK-IVB | N/A |
| FAA | Federal Aviation Administration |
| ABB | Asea Brown Boveri |