| Acronym | Meaning |
 | UGC | Uppsala General Catalog |
| SNU | Solar Neutrino Units |
| UIT | Ultraviolet Imaging Telescope |
| ACE | Advanced Composition Explorer |
| VLF | Very Low Frequency |
| SAT | Synthetic Aperture Telescope |
| GOES | Geostationary Orbiting Environmental Satellite |
| CNES | Centre National D'Etude Spatiales |
| GC | Galactic Center |
| DAC | Delayed Action Command |
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