| Acronym | Meaning |
 | REI | Range From Entry Interface (400 K) |
| STT | Spacelab Transfer Tunnel |
| CCP | ComPuter Control Panel |
| PDR | Program Director's Review |
| SCA | Sequence Control Assembly |
| OMET | Orbiter Mission Elapsed Time |
| HSP | Health Stabilization Program |
| CIRCUM | Circumference |
| SCB | Specification Control Board |
| OPER | Operations |
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