| Acronym | Meaning |
| SIMU | Simulated Inertial Measurement Unit |
| CTE | CentralTimingEquipment |
| PMU | Pulse Modulation Unit |
| OFCC | Office Of Federal Contract Compliance |
| HPOT | High Pressure Oxidizer Turbopump |
| I | ECM Induced Environment Contamination Monitor |
| T&E | Test And Evaluation |
| SW | Solar Wing |
| SPIF | Standard Payload Interface Facility |
| ENG | Engine |