| Acronym | Meaning |
| OAO | Orbiting Astronomical Observatory |
| DXS | Diffuse X-ray Spectrometer |
| HIRS | High-resolution Infrared Radiation Sounder |
| KM | Kilometer |
| NASA | National Aeronautics And Space Administration |
| BIT | Binary Digit |
| VISAD | Visualization For Algorithm Development |
| AC | Alternating Current |
| SSEC | Space Science And Engineering Center |
| CSBT | Clear-Sky Brightness Temperature |