| Acronym | Meaning |
| CCSM | Community Climate System Model |
| PB | Product Of Polarization And Brightness |
| AT | Accelerator Technology |
| ILP | International Lithosphere Programme |
| OMR | Optical Mark Reader |
| DDF | Digital Data Formatter |
| AIRS | Advanced Inertial Reference Sphere |
| SUSIM | Solar Ultraviolet Spectral Irradiance Monitor |
| ETL | Environmental Technology Laboratory |
| LAGEOS | Laser Geodynamics Satellite |