| Acronym | Meaning |
| ESSA | Environmental Science Services Administration (preceded NOAA) |
| EOSDIS | Earth Observing System Data And Information System |
| LASER | Light Amplification By Stimulated Emission Of Radiation |
| AVHRR | Advanced Very High Resolution Radiometer |
| MOPITT | Measurements Of Pollution In The Troposphere (EOS) |
| MB/S | Megabytes Per Second |
| CIMSS | Cooperative Institute For Meteorological Satellite Studies |
| OSS | Office Of Space Science (NASA) |
| DXS | Diffuse X-ray Spectrometer |
| ESOC | European Satellite Operations Center |