| Acronym | Meaning |
 | GC | Gyrocompassing |
| DWG | Drawing |
| MPTA | Main Propulsion Test Article |
| HSS | High Stress Strain |
| PSF | Processing And Staging Facility (SRB) |
| TD | Time Delay |
| VEH | ID Vehicle Identification |
| ORD | Operational Readiness Date |
| ERSIR | Earth Resources Shuttle Imaging Radar |
| DIR | Document Information Record |
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