| Acronym | Meaning |
 | LSU | International System Of Units |
| CDDT | Countdown Demonstration Test |
| MVA | Main Valve Actuator |
| SGS | Steep Glide Slope |
| HPOT | High Pressure Oxidizer Turbopump |
| OBS | Observe |
| MDS | Mission Development Simulator |
| DMIS | Data Management Information System |
| FAR | Failure Analysis Report |
| IPS | IR SPECTInfrared Spectrometer |
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