| Acronym | Meaning |
| M+R | Maintenance And Refurbishment |
| GHA | Greenwich Hour Angle |
| CA | Corrective Action |
| SRA | Support Requirements Analysis |
| DVT | Design Verification Testing |
| DAE | Data Acquisition EquiPment |
| MTTE | Mean Time To Exchange |
| VTS | Vertical Test Stand |
| MSEC | Master Separation Events Controller |
| WBSC | Wide-band Signal Conditioner |