| Acronym | Meaning |
| MSS | Multi-Spectral Scanner |
| GAC | Global Area Coverage |
| MHZ | MegaHertz |
| HIRS | High-resolution Infrared Radiation Sounder |
| HIS | High-resolution Interferometer Sounder |
| TES | Tropospheric Emission Spectrometer (EOS) |
| HRIR | High Resolution Infrared Radiometer |
| AMSU | Advanced Microwave Sounder Unit (EOS) |
| MAMS | Multispectral Atmospheric Mapping Sensor |
| FSL | Forecast Systems Laboratory (a NOAA ERL) |