| Acronym | Meaning |
| OCTW | Optical Communications Through The Shuttle Window |
| GLOMR | Global Low-Orbiting Message Relay |
| DOT | Department Of Transportation |
| FUSE | Far Ultraviolet Spectroscopic Explorer |
| VIB | Vertical Integration Building |
| VAS | VISSR Atmospheric Sounder |
| PC | ParseC (usu. Pc) |
| SEI | Space Exploration Initiative |
| RESTEC | Remote Sensing Technology Center |
| FAP | Freedom Attached Payloads |