| Acronym | Meaning |
| OTH | Over-the-Horizon (.Radar) |
| OIC | Orbiter (Orbital) Integrated Checkout |
| EGT | Exhaust Gas Temperature |
| RSLV | Resolve |
| RSSPO | Resident Space Shuttle Project Office (Officer) |
| BFS | Backup Flight System |
| HVPS | High Voltage Power Supply |
| CCS | Command And Communication System |
| JETS | Joint Electronics Type (Designation) System |
| POL | Petroleum, Oil, And Lubricant |