| Acronym | Meaning |
| FC | Flight Critical |
| INV | MGINVMGT Inventory Management |
| DCC | Data ComPutation Complex |
| LHCP | Left Hand Circularly Polarized |
| TAEM | Terminal Area Energy Management |
| PKG | Package |
| PPO2 | Partial Pressure 02 |
| PUCS | Propellant Utilization Control System |
| PCCP | Preliminary Contract Change ProPosal |
| TBF | Test De Bon Fonctionnement (Spacelab) |