| Acronym | Meaning |
| ETR | Eastern Test Range |
| NRSC | National Remote Sensing Centre |
| ADS | Astrophysical Data System (at Havard-Smithsonian CfA) |
| EDS | Electronic Data Systems |
| ATDRS | Advanced Tracking And Data Relay Satellite |
| ESO | European Southern Observatory |
| TEA | Torque Equilibrium Attitude |
| ASEM | Assembly Of Station By EVA Methods |
| ADFRF | Ames-Dryden Flight Research Facility |
| PTC | Passive Thermal Control |