| Acronym | Meaning |
| ESMR | Electrically Scanning Microwave Radiometer |
| MHZ | MegaHertz |
| XBSS | X-ray Background Survey Spectrometer |
| GMT | Greenwich Mean Time (repl. By UTC) |
| MOPITT | Measurements Of Pollution In The Troposphere (EOS) |
| MODIS | MODerate-resolution Imaging Spectroradiometer (EOS) |
| HIRIS | HIgh-Resolution Imaging Spectrometer (EOS) |
| GIFTS | Geosynchronous Imaging Fourier Transform Spectrometer |
| VAS | VISSR Atmospheric Sounder (launch |
| MSL | Mean Sea Level |