| Acronym | Meaning |
| MSG | Meteosat Second Generation |
| S-HIS | Scanning High Resolution Interferometer Sounder |
| OSSE | Office Of Space Science Education (SSEC) |
| EOSDIS | Earth Observing System Data And Information System |
| UHF | Ultra High Frequency |
| MOPITT | Measurements Of Pollution In The Troposphere (EOS) |
| ITS | Interferometer Thermal Sounder (HIS) |
| HIS | High-resolution Interferometer Sounder |
| NASA | National Aeronautics And Space Administration |
| H2O | Water (vapor) |