| Acronym | Meaning |
| GUSB | Guided Unified S-Band |
| SE&I | SYstems Engineering And Integration |
| R&Z | Range And Zero |
| MIR | Malfunction Investigation Report |
| FDA | Flight Deck Assembly (FDF) |
| PASS | Primary Avionics Software System |
| TC | Time To Circular |
| PORD | Performance And 0iperations Requirements Document |
| TP | Turbo Pump |
| CVAS | Configuration Verification Accounting System |