| Acronym | Meaning |
 | CM | Central Meridian |
| JD | Julian Date; Julian Day (Number) |
| GGM | Goskogidromet/Gidromettsentr |
| VPF | Vertical Processing Facility |
| ERS | Earth Resources Satellite |
| AFGWC | Air Force Global Weather Center |
| CASCA | Canadian Astronomical Society |
| RG | Red Giant |
| ESRO | European Space Research Organisation |
| ALEXIS | Array Of Low Energy X-ray Imaging Sensors |
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