| Acronym | Meaning |
 | PCT | Photometric Calibration Test |
| OSTP | Office Of Science And Technology Policy |
| NRSC | National Remote Sensing Centre |
| GEODSS | Ground-based Electro-optical Deep-space Surveillance System |
| MOC | Mars Observer Camera |
| HR | Hertzsprung-Russell |
| SLF | Shuttle Landing Facility |
| AFETR | USAF's ETR |
| EDO | Extended Duration Orbiter |
| MACS | Modular Attitude Control System |
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