| Acronym | Meaning |
| MCW | Modulated Continuous Wave |
| MDF | Mating/Demating Facilities |
| FM/FM | Frequency Modulation/Frequency Multiplexing |
| PHSF | Payload Hazardous Servicing Facility |
| NX | NOrmal To X-Axis |
| SHE | SuPercritical Helium |
| TVCA | Thrust Vector Control Actuator |
| HL | Hardline |
| SSO | SuPport System For OEX |
| CCRA | Cape Canaveral Reference Atmosphere |