| Acronym | Meaning |
 | UGC | Uppsala General Catalog |
| COSTAR | Corrective Optics Space Telescope Axial Replacement |
| ROSAT | ROentgen Satellite |
| OTV | Orbital Transfer Vehicle |
| DFRF | Dryden Flight Research Facility |
| LM | Lunar Module |
| IMO | International Meteor Organization |
| RME | Radiation Monitoring Experiment |
| ISRO | Indian Space Research Organisation |
| WIMP | Weakly Interacting Massive Particle |
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