| Acronym | Meaning |
| GAC | Global Area Coverage |
| KSC | Kennedy Space Center |
| NPOESS | National Polar-orbiting Operational Environmental Satellite System |
| K | Kilo |
| UFO | Unidentified Flying Object |
| SSEC | Space Science And Engineering Center |
| TMR | TOPEX Microwave Radiometer (EOS) |
| FTS | Fourier Transform Spectrometer (HIS |
| MOPITT | Measurements Of Pollution In The Troposphere (EOS) |
| FSL | Forecast Systems Laboratory (a NOAA ERL) |