| Acronym | Meaning |
| DEM | Digital Elevation Model |
| PEPPI | Photometric Eclipse Polar Plume Imager |
| BSU | Beam Steering Unit |
| S&R | Search And Rescue |
| JMOF | Joint Meteorological Observing Facility |
| NCP | Network Control Program |
| IARP | International Atmospheric Research Program |
| ESRO | European Space Research Organization |
| NPOP | NASA Polar Orbiting Platform |
| AIRS | Advanced Infared Studies |