| Acronym | Meaning |
 | SETI | Search For ExtraTerrestrial Intelligence |
| ALPO | Association Of Lunar And Planetary Observers |
| SSME | Space Shuttle Main Engine |
| MTC | Man Tended Capability |
| WSGT | White Sands Ground Terminal |
| UTC | Coordinated Universal Time |
| SARA | Satellite Pour Astronomie Radio Amateur |
| VFT | Visual Function Tester |
| ATDRS | Advanced Tracking And Data Relay Satellite |
| GTO | Geostationary Transfer Orbit |
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