| Acronym | Meaning |
 | MODIS | Moderate Resolution Imaging Spectrometer |
| PDS | Planetary Data System |
| IMU | Inertial Measurement Unit |
| ALPO | Association Of Lunar And Planetary Observers |
| SPAS | Space Pallet Satellite |
| BFC | Backup Flight Computer |
| SAA | South Atlantic Anomaly / Single Access Antenna |
| LDEF | Long Duration Exposure Facility |
| STS | Shuttle Transport System / Space Transportation System |
| LEST | Large Earth-based Solar Telescope |
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