| Acronym | Meaning |
| APS | Array Processing System |
| LEARN (PROJECT) | Laboratory Experience In Atmospheric Research |
| ATS | Advanced Technology Satellite |
| OCG | Ocean Catalog Group |
| EDRS | European Data Relay Satellite |
| USDC | United States Department Of Commerce |
| ILI | Instrumentation And Laboratory Improvement |
| MTEM | Magnetosphere-Thermosphere Explorer Mission |
| GATT | General Agreement On Tariffs And Trade |
| AO | Arctic Oscillation |