| Acronym | Meaning |
 | ITOS | Improved Television And Infrared Observation Satellite (1970s) |
| ESMR | Electrically Scanning Microwave Radiometer |
| CH4 | Methane |
| EROS | Earth Resources Observing System |
| HIRS | High-resolution Infrared Radiation Sounder |
| HIRES | HIgh RESolution |
| AVHRR | Advanced Very High Resolution Radiometer |
| ESOC | European Satellite Operations Center |
| ADEOS | ADvanced Earth Observing Satellite (Japan) |
| IRIS | Infrared Radiation Interferometer Spectrometer (1960s) |
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