| Acronym | Meaning |
| VICAR | Graphics Format Used By JPL |
| AXAF | Advanced X-ray Astrophysics Facility |
| MARS | Series Of Soviet Mars Spacecraft |
| ETR | Eastern Test Range |
| DSO | Detailed Supplementary Objective |
| JERS | Japanese Earth Resources Satellite |
| GAS | Get-Away Special |
| SSPS | Sky Survey Prototype System |
| CFHT | Canada-France-Hawaii Telescope |
| GC | Galactic Center |