| Acronym | Meaning |
| BMS | Background Measurement Satellite |
| UCPU | Urine Collection And Pretreatment Unit |
| CAM | R Camera |
| ETB | Equipment Transfer Bag |
| OSDH | Orbiter System Definition Handbook |
| HLD | Hold |
| MC | Mission Completion/Continuation |
| ROS | Removable Overhead Structure |
| PAC | Pressure Alpha Center |
| PR | PulseRate |