| Acronym | Meaning |
| NBT | Neutral Buoyancy Trainer |
| PCF | Payload Control Facility |
| HMP | Hydrozene Monopropeflant (RCS Propellant) |
| LCOM | Logic Control OutPut Module |
| PCU | Power Control Unit |
| GEOSEPS | General Summary Edit Program |
| OMR | Operations Management Room |
| ORIDE | Override |
| CMSI | Checkout/Control And Monitor Subsystem Interface |
| SMD | Special Measuring Service |