| Acronym | Meaning |
| SCOE | Special Checkout Equipment |
| CO | Carbon Monoxide |
| FRSI | Felt Reusable Surface Insulation |
| IPS | Instrument Pointing System (Subsystem) |
| PSD | Program Support Document |
| G | LOW Ground Lift-Off Weight |
| SMD | Spacelab Mission DeveloPment |
| MLS | Microwave Landing System |
| MTTFF | Mean Time To First Failure |
| DAL | Data Aided Loop |