| 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) |