| Acronym | Meaning |
| SMD | Spacelab Mission DeveloPment |
| PED | Pedal |
| PQGS | Propellant Quantity Gaging System |
| FNL | Final |
| DDIS | Data Depository Index System |
| OPA | Operations Planning Analysis |
| LSF | Laboratory Simulation Facility |
| STRUCT | Structure |
| BD | Binary Digit |
| CA | Carrier Aircraft |