| Acronym | Meaning |
 | MKTI | Mission Kit Technical Instruction |
| DRA | Data Release Authorization |
| DDI | Discrete Data Input |
| LRSI | Low Temperature Reusable Surface Insulation |
| SLS | Spacelab Simulator |
| PCU | Payload Checkout Unit |
| MCP | Mission Control Programmer |
| TDRSS | Tracking And Data Relay Satellite System |
| M | PTPMain Propulsion Test Program |
| GPS | General Processing Subsystem |
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