| Acronym | Meaning |
| EODC | Earth Observation Data Centre |
| FRED | Space Station Freedom |
| GC | Globular Cluster |
| CEA | Center For EUV Astrophysics |
| SAT | Synthetic Aperture Telescope |
| VAFB | Vandenberg Air Force Base |
| OSCAR | Orbiting Satellite Carrying Amateur Radio |
| DOT | Department Of Transportation |
| FGS | Fine Guidance Sensors |
| ERS | Environmental Research Satellite |