| Acronym | Meaning |
 | SAWD | Solid Amine Water Desorbed |
| SPA | Signal Processor Assembly |
| RFD | Requirements Formulation Document |
| EC | Events Controller |
| SP-OPI | OPerations Planning And Integration Office (KSC |
| SSPDS | Space Shuttle Payload Data Study |
| SMD | Spacelab Mission DeveloPment |
| GPBIM | General Purpose Buffer Interface Module |
| OCF | Orbiter Computational Facilities |
| NSR | National Slow Rate |
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