| Acronym | Meaning |
 | OPGUID | OPtimum Guidance (Technique) |
| LHE | Liquid Helium |
| DIP | Display Input Processor |
| LMS | Information Management System |
| HPI | High Performance Insulation |
| TGSE | Telemetry Ground Support Equipment |
| CCN | Contract Change Negotiation |
| UL | Upper Limit |
| SRM | Solid Rocket Motor |
| OPS | Orbiter Project Schedules |
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