| Acronym | Meaning |
 | PIIN | Procurement Instrument Identification Number |
| EVT | Extravehicular Transfer |
| NSGT | NASA Ground Terminal |
| LT | Lead Time |
| EM | Engineering Model |
| LCCD | Launch Commit Criteria Document |
| TBS | To Be Superseded |
| CRAS | Cost Reduction Alternative Study |
| SSPD | Shuttle System Payload Data |
| CSPU | Coi-e Segment Processing Unit |
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