| Acronym | Meaning |
 | RTG | Radioisotope Thermoelectric Generator |
| MWR | MMWR Mean Width Ratio |
| EEH | EMU Electrical Harness |
| CRMD | Computer Resources Management Data |
| APS | Acquisition Processor Subsystem |
| EPT | Emergency Procedure Trainer |
| OPSB | Orbiter Processing SuPport Building |
| FDS | Fluid Distribution System |
| CGC | Command Guidance Computer |
| SIG | Signal |
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