| Acronym | Meaning |
| AC | Alternating Current |
| LIDAR | LIght Detection And Ranging |
| KSC | Kennedy Space Center |
| EROS | Earth Resources Observing System |
| ECMWF | European Centre For Medium-range Weather Forecasts |
| APP | AVHRR Polar Pathfinder |
| NCDC | National Climatic Data Center |
| DXS | Diffuse X-ray Spectrometer |
| MOPITT | Measurements Of Pollution In The Troposphere (EOS) |
| MISR | Multi-angle Imaging Spectro-Radiometer (EOS) |