| Acronym | Meaning |
| METVC | Main Engine Thrust Vector |
| TACO | Test And Checkout Operations |
| USBS | Unified S-Band System (Subsystem) |
| PF | Payload Operational Instrumentation MDM-FWD |
| IPC | Intermittent Positive Control |
| MCPC | Manipulator Controller Power Conditioner |
| SARP | Summary AnalYsis Report |
| PR | Purchase Request |
| R | Roll |
| CHG | Charge |