| Acronym | Meaning |
 | NPRV | Nitrogen Pressure Relief Valve |
| QTR | Quarter |
| PETS | POCC Experiments Timeline System (GDSD And Spacelab |
| SM | ESShuttle Mission Evaluation Simulation (Simulator) |
| ETD | Estimated Turnover Date |
| ATP | Accelerated Training Program |
| SIR-A | Shuttle Imaging Radar@A |
| D | LSC Defense Logistics Service Center |
| SR&QA | Safety |
| VX | Velocity Along The X-Axis |
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