| Acronym | Meaning |
| SSM/I | Special Sensor For Microwave/Imaging |
| SPTVAR | Special Purpose Test Vehicle For Atmospheric Research |
| (AA3) | Accident Analysis Computer Program |
| CCM4 | Community Climate Model 4 |
| TIPMEX | Tibetan Plateau Meteorological Experiment |
| IGBP | International Geosphere-Biosphere Program |
| RISC | Reduced Instruction Set Computer |
| ESIS | ESA Space Information Systems |
| O AND A | Orbit And Altitude |
| PSI | Pounds Per Square Inch |