| Acronym | Meaning |
 | GSIU | Ground Standard Interface Unit |
| BP | C/SCSCCost/Schedule Control Systems Criteria |
| IOCU | Input/Output Control Unit |
| DRSS | Discrepancy Report SquawkSheet |
| UMO | Unmanned Orbital |
| CPF | Cargo Processing Facility |
| RT | Receiver-Transmitter |
| VOR-DME | VHF Omni Range-UHF Distance Measuring Equipment |
| HDP | Holddown Post |
| DAU | Data Acquisition Unit |
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