| Acronym | Meaning |
| HRPS | Hazard Reduction Precedence Sequence |
| E | LSSEmergency Life Support System |
| TRS | Top Right Side |
| DOF | Degree-of-Freedom |
| EHX | Experiment Dedicated Heat Exchanger |
| BARB | Ballast Aerating Retrieval Boom |
| UMVF | Unmanned Vertical Flight |
| MCIU | Mission Control And Interface Unit |
| TGO | Time To Go |
| SRCBD | Software Requirements Change Board Directive |