| Acronym | Meaning |
| BP | One Hundred |
| OST | Orbiter SuPport Trolley |
| MVF | Manned Vertical Flight |
| PASS | Primary Avionics Software System |
| INV | MGINVMGT Inventory Management |
| MCLT | Maximum Cruise Level Thrust |
| QPSK | Quadrature Phase Shift Key |
| TPI | Terminal Phase Initiation |
| SFO | Space Flight Operations |
| FSD | Flight Simulation Division (JSC) |