| Acronym | Meaning |
 | FAGS | Federation Of Astronomical And Geophysical Services |
| EPOP | European Polar Orbiting Platform |
| MNRAS | Monthly Notes Of The Royal Astronomical Society |
| GAU | General Accounting Unit |
| TROPAL | Tropical Alert Group |
| ESSL | Earth & Sun Systems Laboratory (formerly ATD) |
| F | Frequency |
| ADPE | Automatic Data Processing Equipment Or ADP Equipment |
| ENAC | Energetic Neutral Atom Camera |
| APA | Allied Pilot's Association |
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