| Acronym | Meaning |
 | FWHM | Full Width At Half Maximum |
| LGM | Little Green Men |
| VMS | Vertical Motion Simulator |
| UKST | United Kingdom Schmidt Telescope |
| IGY | International Geophysical Year |
| ARTEMIS | Advanced Relay TEchnology MISsion |
| INMARSAT | International Maritime Satellite |
| LST | Local Sidereal Time |
| APE | Auroral Photography Experiment |
| SWF | ShortWave Fading |
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