| Acronym | Meaning |
| MDM | Multiplexer/Demultiplexer |
| RRI | Rendezvous Radar Indicator |
| SSPD | Shuttle System Payload Description |
| NOAA | National Oceanic And Atmospheric Administration |
| MOL | Molecular |
| NT | Newton |
| PS | Pressure Switch |
| IDSO | Interdivisional Sales Order |
| VCB | Vertical Location Of The Center Of Buoyancy |
| VGIMU | Velocity To Be Gained As Related To IMU Orientati |