| Acronym | Meaning |
 | IOA | Institute Of Astronomy (Cambridge) |
| GHA | Greenwich Hour Angle |
| CZCS | Coastal Zone Color Scanner |
| ESA | European Space Agency |
| EUMETSAT | European Meterological Satellite Organisation |
| ADS | Astrophysical Data System (at Havard-Smithsonian CfA) |
| ESIS | European Space Information System |
| IOTA | Infrared-Optical Telescope Array |
| ADS | Aitken Double Star Catalog |
| ACE | Advanced Composition Explorer |
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