| Acronym | Meaning |
| ODF | Orbit Determination Facility |
| CV | Coefficient Of Variation |
| FCC | Flight Control Computer |
| SEM | Seller's Engineering Memo |
| BSR | Basic System Release |
| PBD | Payload Bay Door |
| SCL | Secondary Coolant Loop |
| RHS | Rocketdyne Hybrid Simulator |
| FRFT | Flight Readiness Firing Test |
| SPIMS | Shuttle Program Information Management System |