| Acronym | Meaning |
| ATOVS | Advanced TIROS Operational Vertical Sounder |
| WSGC | Wisconsin Space Grant Consortium |
| VAS | VISSR Atmospheric Sounder (launch |
| JSC | Johnson Space Center (NASA |
| NOAASIS | NOAA Satellite Information System |
| CERES | Clouds And The Earth's Radiant Energy System (EOS) |
| ACRIM | Active Cavity Radiometer Irradiance Monitor (EOS) |
| PPM | Part Per Million |
| NCAR | National Center For Atmospheric Research |
| LASER | Light Amplification By Stimulated Emission Of Radiation |