| Acronym | Meaning |
 | PLGSS | Payload Ground Support Systems |
| LOP | Input/Output Port |
| PERT | Program Evaluation Review Technique |
| PRD | Program Requirements Documents (UDS) |
| TPM | Terminal Phase Midcourse |
| SDA | Shaft Drive Axis |
| CCA | Coolant Control Assembly |
| FMC | Food Machinery Corporation |
| K-IUSPS | KSC IUS Project Specification |
| ORT | Operational Readiness Test |
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