| Acronym | Meaning |
 | EROS | Earth Resources Observing System |
| ITOS | Improved Television And Infrared Observation Satellite (1970s) |
| ERBE | Earth Radiation Budget Experiment |
| ESE | Earth Science Enterprise (NASA) |
| ACRIM | Active Cavity Radiometer Irradiance Monitor (EOS) |
| ATOVS | Advanced TIROS Operational Vertical Sounder |
| SAGE | Stratospheric Aerosol And Gas Experiment (EOS) |
| HIMSS | HIgh-resolution Microwave Spectrometer Sounder |
| NESDIS | National Environmental Satellite |
| HIRS | High-resolution Infrared Radiation Sounder |
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