| Acronym | Meaning |
| EVSC | Extravehicular Suit Communications |
| CST | Central Standard Time |
| BTU | Bus Terminal Unit |
| PRACA | Problem Reporting And Corrective Action |
| DCU | Digital Computer Unit |
| MS | Material Specification |
| HESS | High Energy Squib Simulator |
| PCCE | Payload Common Communication Equipment |
| VIB | Vertical Integration Building |
| RSS | Range SafetySystem |