| Acronym | Meaning |
| RECV | Receive |
| SIMS | Shuttle Imaging Microwave System |
| R | Right |
| OSTP | Orbiting System Test Plan |
| STADAN | Space Tracking And Data Acquisition Network |
| FIFO | First In-First Out (High Speed Data Buffers) |
| NOT | SwitchaNot Switchable |
| FVMS | Fluid Volume Measurement System |
| MTCA | Monitor And Test Control Area |
| GPI | Gimbal Position Indicator |