| Acronym | Meaning |
| VTHL | Vertical Takeoff Horizontal Landing |
| PSR | PulSaR |
| DAO | Dominion Astrophysical Observatory |
| CDS | Command And Data Subsystem |
| TOS | Transfer Orbit Stage |
| EDC | EROS Data Center |
| OTA | Optical Telescope Assembly |
| ERS | Environmental Research Satellite |
| SEST | Swedish ESO Submillimeter Telescope |
| IFEA | Integrated Furnace Experiment Assembly |