| Acronym | Meaning |
| COC | Close-Open-Close |
| VL | Expendable Vehicles (KSC VO Dir.) |
| VVI | Vertical Velocity Indicator |
| SSPPSG | Space Shuttle Payload Planning Steering Group |
| FCR | Flight Configuration Review |
| FPB | Fuel Preburner |
| ML | Mold Line |
| SEPS | Solar Electric Propulsion System |
| SO2 | Sulphur Dioxide |
| DAB | Data Acquisition Bus |