| Acronym | Meaning |
 | ERS | Engineering Release System |
| GIM | Generalized Information Management |
| CUE | Common Usage Equipment |
| N2H4 | Hydrazine |
| REI | Range From Entry Interface (400 K) |
| MST | Module Service Tool |
| ERSIR | Earth Resources Shuttle Imaging Radar |
| LST | Local Standard Time |
| ESI | Electrical System Integration |
| IOF | Initial Operational Flight |
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