| Acronym | Meaning |
| PGOR | Payload Ground Operation Requirements |
| MDS | Mission Development Simulator |
| S/C | Sensor/Controller |
| I | LCCS Integrated Launch Control And Checkout System |
| SOCH | Spacelab Orbiter Common Hardware |
| DPP | Discrepancy R12POrt |
| TCV | Temperature Control Voltage |
| B | Bit |
| W | Wide |
| MPGHM | Mobile Payload Ground Handling Mechanism |