| Acronym | Meaning |
| VLF | Very Low Frequency |
| MSU | Microwave Sounding Unit |
| VAS | VISSR Atmospheric Sounder |
| THIR | Temperature/Humidity Infrared Radiometer |
| SNR | Signal To Noise Ratio / SuperNova Remnant |
| CDS | Command And Data Subsystem |
| VMF | Voenno-Morskoy Flot |
| CCD | Charge-Coupled Device |
| EUMETSAT | European Meterological Satellite Organisation |
| IUE | International Ultraviolet Explorer |