| Acronym | Meaning |
| ASPT | Advanced Satellite Products Team (NOAA/ORA) |
| EPS | European Polar Satellite |
| NCAR | National Center For Atmospheric Research |
| HIRES | HIgh RESolution |
| AC | Alternating Current |
| HSB | Humidity Sounder For Brazil |
| NASA | National Aeronautics And Space Administration |
| METEOSAT | METEOrological SATellite (European) |
| HRIR | High Resolution Infrared Radiometer |
| ATOVS | Advanced TIROS Operational Vertical Sounder |