| Acronym | Meaning |
 | LM | Lunar Module |
| EUMETSAT | European Meterological Satellite Organisation |
| LDEF | Long Duration Exposure Facility |
| ASP | Astronomical Society Of The Pacific |
| GEODSS | Ground-based Electro-optical Deep-space Surveillance System |
| TPS | Thermal Protection System |
| VMS | Vertical Motion Simulator |
| FPD | Flight Projects Directorate |
| IRAF | Image Reduction And Analysis Facility |
| SPTN | SPARTAN |
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