| Acronym | Meaning |
| UBM | Unpressurized Berthing Mechanism |
| COMPTEL | COMPton TELescope |
| EDC | EROS Data Center |
| FOLD | Federally-Owned LANDSAT Data |
| AACS | Attitude And Articulation Control Subsystem |
| ADS | Astrophysical Data System (at Havard-Smithsonian CfA) |
| SEST | Swedish ESO Submillimeter Telescope |
| ACTS | Advanced Communications Technology Satellite |
| POEM | Polar Orbiting Earth Mission |
| MET | Mission Elapsed Time |