| Acronym | Meaning |
 | LED | Light Emitting Diode |
| GAC | Global Area Coverage |
| MSL | Mean Sea Level |
| STEP | Satellite Technology Education Program (WSGC) |
| JSC | Johnson Space Center (NASA |
| EOS | Earth Observing System |
| AC | Alternating Current |
| ECMWF | European Centre For Medium-range Weather Forecasts |
| OAO | Orbiting Astronomical Observatory |
| DCS | Data Collection System (NOAA Polar Orbiting Satellites) |
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