| Acronym | Meaning |
| CTS | Communications And Tracking System |
| SATS | Shuttle Avionics Test System |
| CAL | Cornell Aeronautical Laboratory |
| PGOR | Payload Ground Operation Requirements |
| ISTB | Integrated Subsystem Test Bed |
| COS | Console Operating System |
| MOD | Modification |
| RMS | Remote ManiPulator System (SubsYstem) |
| NWSI | New World Services Inc. |
| CAU | Command Acquisition Unit |