| Acronym | Meaning |
| FOV | First Orbital Vehicle |
| COFI | Checkout And Fault Isolation (on Board) |
| OSS | OEX SuPport System |
| IUS | International Ultraviolet ExPlorer |
| TFL | Telemetry Format Load |
| SUMS | Shuttle Upper-Atmosphere Mass Spectrometer |
| NO | Normally Open |
| FCSM | Flight Combustion Stability Monitor |
| BDA | BermudaIsland |
| MPIO | Mission Payload Integration Office |