| Acronym | Meaning |
| R | Reliability |
| SSD | System Summary Display |
| MPESS | Mission Peculiar Experiment Support Structure |
| SMU | SOft Mockup |
| ICCP | Interface Coordination And Control Procedure |
| RHS | Rocketdyne Hybrid Simulator |
| SECS | Standard Cubic Centimeters Per Second |
| RES | Reserve |
| TDRSS | Tracking And Data Relay Satellite System |
| OS | Operating System |