| Acronym | Meaning |
| SSM/I | Special Sensor For Microwave/Imaging |
| I/F | Interface |
| NECHE | Northeast Colorado Hail Experiment |
| ECA | Earth-crossing Asteroids |
| NCSA | National Center For Supercomputing Applications |
| PSPT | Precision Solar Photometric Telescope |
| SPAR | Spaceborne Rawinsonde |
| NEAQS | New England Air Quality Study |
| AO | Administrative Order |
| PPU | Peripheral Processor Unit |