| Acronym | Meaning |
| ESOC | European Satellite Operations Center |
| LASER | Light Amplification By Stimulated Emission Of Radiation |
| APP | AVHRR Polar Pathfinder |
| SWAMP | Science Working Group For The AM Platform (EOS) |
| POES | Polar Operational Environmental Satellite |
| RAOB | RAdiosonde OBservation |
| EM | ElectroMagnetic |
| HST | Hubble Space Telescope |
| ERSC | Environmental Remote Sensing Center (IES) |
| HSB | Humidity Sounder For Brazil |