| Acronym | Meaning |
| OLIF | Orbiter Landing Instrumentation Facilities |
| QSGVT | Quarter Scale Ground Vibration Test |
| EDDR | Electron DiPole-DiPole Reservoir |
| ORP | OFS Retransmission Processor |
| SOATS | SLPport Operation Automated Training System |
| IDG | Integrated Drive Generator |
| MTU | Master Timing Unit |
| P&M | Performance Monitor |
| MD | Master Dimension |
| FDS | Flight Design And Scheduling |