| Acronym | Meaning |
| SOMS | Shuttle Orbiter Medical System |
| RDS | Rocketdyne Digital Simulator |
| L/H | Local Horizontal |
| SNF | SYstem Noise Figure |
| V&DA | Video And Data Acquisition |
| DCM | Display And Control Module |
| VCC | Verification Code Counter |
| SCIU | Selector Control Interface Unit |
| SODS | Shuttle Operational Data System |
| HVSL | Holidays |