| Acronym | Meaning |
| IMU | Inertial Measurement Unit |
| SAB | Spacecraft Assembly Building |
| LAT | Latitude |
| ILS | IntegratedLogistics System |
| PROB | Problem |
| DI | Display Interface Processor (Software Functional Element) |
| SYN | Synchronous |
| S@MSCC | Shuttle Mission Simulator Computer Complex |
| SSCC | Support Services Control Center |
| MTBR | Mean Time Between Replacement |