| Acronym | Meaning |
 | VEDS | Vehicle Emergency Detection System |
| HFTS | Horizontal Flight Test Simulator |
| PTCS | Planning |
| DCO | Detailed Checkout |
| VY | Velocity Along The Y-Axis |
| PSST | Periodic Significant Scheduled Tasks |
| OPER | Operation |
| TPS | Thermal Protection System |
| RT | Real Time (R/T Preferred) |
| LGA | Low Gain Antenna |
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