| Acronym | Meaning |
 | OPI | Orbiter Payload Interrogator |
| COB | Communications Office Building |
| CDH | Constant Delta Height |
| PSA | Power Servo Am Pl If Ier |
| NGM | NNGM Nitrogen Generation Module |
| LIE | Left Inboard Elevon |
| IFASC | Integrated Functions Assessment Steering Committ |
| ISC | Johnson Space Center (formerly MSC) |
| USN | United States Navy |
| CVM | Control Valve Module |
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