| Acronym | Meaning |
| UL | Unit Of Issue |
| OCF | Orbiter Computational Facilities |
| OBS | Operational Biomedical System |
| NORMAL | LoadNormal Load Factor (g) |
| USS | United States Standard |
| M | B/SMegabits Per Second |
| RSS | Rotating Service Structure |
| LARS | Laminar Angular Rate Sensor |
| TVTA | Thermal Vacuum Test Article |
| JPL | Jet Propulsion Laboratory |