| Acronym | Meaning |
 | MPD | Maximum Permissible Dose |
| QPL | Qualified Parts List |
| IPS | IRIG Inertial Rate Integrating Gyro |
| DEA | Deployed Electronics Assembly |
| SCCB | Site Configuration Control Board |
| IU | Instrument Unit |
| OMS | Orbital Maneuvering System |
| CHCS | Cabin Humidity Control Subsystem |
| V/A | Video/Analog |
| OMR | Orbiter Management Review |
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