| Acronym | Meaning |
| RTV | Room-Temperature Vulcanized |
| PSA | PowerServoAssembly |
| MEC | Master Event Controller |
| DADE | Data Acquisition And Decommutation EquiPment |
| DP | Double Pole |
| OCR | Optical Character Recognition |
| SD/YVV | SD/Launch Base Div['si'on |
| FCOS | Flight Computer Operating System (Orbiter) |
| ADP | Automated Data Processing |
| GYRO | Gyroscope |