| Acronym | Meaning |
 | MPSR | Mission Profile Storage And Retrieval |
| RTE | Responsible Test Engineer |
| OPA | Operations Planning Analysis |
| STRUC | Structure |
| PDRS | Payload Deployment And Retrieval System(s) |
| LPOT | Low-pressure Oxidizer Turbopump |
| ECAS | Experiment Computer Application Software |
| RECONN | Reconnaisance |
| MCIU | Manipulator Controller Interface Unit |
| ESS | Essential |
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