| Acronym | Meaning |
| HSB | Humidity Sounder For Brazil |
| SBUV | Solar Backscatter UltraViolet Radiometer (EOS) |
| CH4 | Methane |
| MHZ | MegaHertz |
| ESOC | European Satellite Operations Center |
| AOT | Aerosol Optical Thickness |
| AO&SS | Atmospheric |
| BIBEX | Biomass Burning Experiment |
| IRIS | Infrared Radiation Interferometer Spectrometer (1960s) |
| MODIS | MODerate-resolution Imaging Spectroradiometer (EOS) |