| Acronym | Meaning |
| DCCS | Dynamic Cell Culture System |
| DACS | DATA Acquisition And Control Subsystem |
| MOC | Mars Observer Camera |
| KAO | Kuiper Airborne Observatory |
| FWHM | Full Width At Half Maximum |
| LDEF | Long Duration Exposure Facility |
| SPAS | Space Pallet Satellite |
| VOIR | Venus Orbiting Imaging Radar |
| IPS | Inertial Pointing System |
| IAUC | IAU Circular |