| Acronym | Meaning |
 | IB | Inert Building |
| MTC | Manual Traffic Control |
| PDU | Pressure Distribution Unit |
| OMCF | Operations And Maintenance Control File |
| NFSP | NNFSPNonflight Switch Panel |
| S/C | Stabilization And Control |
| CIRCUM | Circumference |
| MIL | GSFC Spaceflight Tracking And Data Network Station |
| MSB | Most Significant Bit |
| SLC | Space Launch Complex |
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