| Acronym | Meaning |
 | MOC | Mars Observer Camera |
| ALPO | Association Of Lunar And Planetary Observers |
| ML | Mobile Launcher |
| IDL | Interactive Data Language |
| NPOE | NPO Energiya |
| DOD | Department Of Defense |
| SAREX | Search And Rescue Exercise / Shuttle Amateur Radio Experiment |
| APE | Auroral Photography Experiment |
| SSBUV | Shuttle Solar Backscatter Ultraviolet Experiment |
| SSI | Solid-State Imager / Space Studies Institut |
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