| Acronym | Meaning |
| RTG | Radi0isotope Thermal Generation |
| SOA | RShuttle Orbital Applications And Requirements |
| CC | Cost Center |
| SB | Synchronization Bit |
| SMMD | Specimen Mass Measurement Device |
| IPS | IRD Information Requirements Document |
| PMN | Program Management Network |
| KIP | Keyboard Input Processor |
| EDC(M) | Electrochemical DePolarized CO (Module) |
| IP | Identification Of Position |