| Acronym | Meaning |
| DEL | Deorbit |
| PMP | Parts |
| CCS | Complex Control Set |
| HMF | Horizontal Mating Facility |
| PREVLV | Prevalve |
| TDRR | Test Data Recording And Retrieval |
| TAC | Kennedy Space Center Landing Site |
| PIIN | Procurement Instrument Identification Number |
| IMU | Internal Measurement Unit |
| GCOS | General Computer Operational System |