| Acronym | Meaning |
 | RAS | Royal Astronomical Society |
| ESIS | European Space Information System |
| ENACEOS | ENAC For EOS |
| AMOS | Air Force Maui Optical System |
| PDRS | Payload Deployment And Retrieval System |
| CCAFS | Cape Canaveral Air Force Station |
| HF | High Frequency |
| TM | Thematic Mapper |
| WMO | World Meterological Organisation |
| GMRT | Giant Meter-wave Radio Telescope |
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