| Acronym | Meaning |
| MVGVT | Mated Vertical Ground Vibration Test |
| STM | Signal Termination Module |
| GSFC | Goddard Space Flight Center (Greenbelt |
| MPP | Material Processing Procedure |
| ETD | External Tank Door |
| W | West |
| PRP | Personnel Reliability Program |
| OC | Quality Control |
| SLN | ERNO SPacelab Payload |
| CDF | Cool-Down Facility |