| Acronym | Meaning |
| VEH | ID Vehicle Identification |
| SIMU | Simulated Inertial Measurement Unit |
| D | Down |
| SSPD | Shuttle System Payload Data |
| POP | Perpendicular-to-Orbit Plane |
| PI | Payload Interrogator |
| PROC | Procedure |
| CSF | Cost Sensitivity Factor |
| SP-LMO | Logistics Management Office (KSC) |
| SEM | Seller's Engineering Memo |