| Acronym | Meaning |
| PTCS | Passive Thermal Control Section |
| LCD | LaunchCountdown |
| CAP | Capacitor |
| CCA | Contract Change Authorization |
| CP | ControlPanel |
| SERB | Systems Engineering Review Board |
| CWS | Caution And Warning System |
| EVSU | Extravehicular Space Unit |
| LTG | Lighting |
| H | AlH AlHorizontal |