| Acronym | Meaning |
| U/C | Under Current |
| PFM | Pulse Frequency Modulation |
| SSBC | Summary Sheet Bar Chart |
| SVDS | Space Vehicle Dynamic Simulator |
| RECT | Rectifier |
| MPSR | Multipurpose Support Room |
| PDP | Postinsertion Deorbit Preparation |
| RAI | Radar Altimeter Indicator |
| COS | Carry-on Oxygen System |
| GIE | Ground Instrumentation Equipment |