| Acronym | Meaning |
| CV | Expendable Vehicles Operations (KSC Directorate) |
| ESDU | Event Storage And Distribution Unit |
| SCAT | Space CommunicationandTracking |
| LO | Lock-On |
| PLSS | Portable Life Support System |
| OBC | Onboard Computer |
| RED | Reduction |
| CAP | Crew Activity Plan |
| DAV | Data Available |
| BP | C&TCommunication And Tracking |