| Acronym | Meaning |
| MMS | Modular Multiband Scanner |
| DDIS | Data Depository Index System |
| PSS | Payload Specialist Station |
| TIS | Test Interface Subsystem |
| CCM | E Contract Change Mass Estimate |
| PBDM | Payload Bay Door Mechanism |
| LSSM | Launch Site Support Manager |
| MAXCO | Maximum Dynamic Pressure |
| PDCR | Proprietary Data Control Record |
| R | Yaw Rankine Rate |