| Acronym | Meaning |
| WINCE | WINter Cloud Experiment |
| EOS | Earth Observing System |
| ERBS | Earth Radiation Budget Satellite |
| HZ | Hertz |
| SAGE | Stratospheric Aerosol And Gas Experiment (EOS) |
| FTS | Fourier Transform Spectrometer (HIS |
| EROS | Earth Resources Observing System |
| APP | AVHRR Polar Pathfinder |
| XBSS | X-ray Background Survey Spectrometer |
| GPS | Global Positioning System |