| Acronym | Meaning |
| CTA | Controlled ThrustAssembly |
| PSM | Propellant Storage Module |
| MSW | Microswitch |
| PPIL | Priced Provisioned Item List |
| T/W | Thrust Weight |
| OL | Open Loop |
| DMS | Docking Mechanism System (Subsystem) |
| MOU | Memorandum Of Understanding |
| R | Right |
| OSS | Orbiting Space Station |