| 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 |