| Acronym | Meaning |
 | HAL/S | High Order Programming Language For Spacelab Usage |
| TLM | Telemetry |
| QEC | Quick Engine Change |
| OPIS | Orbiter Prime Item Specification |
| TPM | Terminal Phase Maneuver |
| DCIB | Data Communication InPut Buffer |
| MODS | Modifications |
| RDP | Receiver And Data Processor |
| DETN | Detection |
| Q | Alpha Pitch Dynamic Pressure |
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