| Acronym | Meaning |
| APL | Applied Physics Laboratory |
| SSEC | Space Science And Engineering Center |
| ASAP | Aerospace Safety Advisory Panel |
| D/L | Downlink |
| UAV | Unmanned Aerial Vehicles |
| IVVS | Interactive Verification And Visualization System (RTVS) |
| APD | Avalanche Photodiode |
| ARISTOTELES | Applications And Research Involving Space Technologies Observing The Earth's Field From Low Earth Orbiting Satellite |
| STSP | Solar Terrestrial Science Programme |
| HMMR | High Resolution Multifrequency Microwave Radiometer |