| Acronym | Meaning |
 | SBTC | Speed Brake/thrust Controller |
| PSIG | Pounds Per Square Inch Gauge |
| OPF | Orbiter Processing Facility |
| RAI | Rofl Attitude Indicator |
| PO | Postorbit |
| U/V | Under Voltage |
| PVR | Precision Voltage Reference |
| EWA | Estimated Warehouse Arrival |
| CCC | Communication(s) Control Console |
| LSID | Launch Sequence And Interlock Document |
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