| Acronym | Meaning |
 | DCIM/DSCIM | Display SYstem Computer Input Multiplexer |
| OIS | Orbiter Instrumentation Systems |
| SDM | SYstem Definition Manual |
| MRL | Manipulator Retention Lock |
| RPIE | Real Property Installed Equipment |
| OBCS | Onboard Checkout Subsystem |
| DAV | Data Available |
| EGT | Estimated Ground Time |
| CAP | Cost Account Package |
| VE | Vehicle Engineering (KSC VBO Directorate) |
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