| Acronym | Meaning |
| CCA | Communications Carrier Assembly |
| LDS | LanLanding |
| PAD | Preliminary Advisory Data (Crew Data Uplink) |
| PG | Power Generation |
| WOW | Weight On Wheels |
| SPF | Software Production Facility |
| LANDC | Instrumentation And Communication |
| CPF | Central Processing Facility |
| DP&S | Data Processi.ng And Software |
| PSM | Phase Sensitive Modulator |