| Acronym | Meaning |
 | SOR | Specification Operational Requirement |
| SDS | Software Design Specification |
| USEC | Microsecond |
| SUPCRIT | Supercritical |
| SEAPG | Support Equipment Acquisition Planning Group |
| P/P | Printer/Plotter |
| EVT | Engineering Verification Test |
| NIDS | NNIDSNetwork Interface Data System |
| PVRO | Pyrotechnics |
| OMET | Orbiter Mission Elapsed Time |
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