| Acronym | Meaning |
| LAGEOS | Laser Geodynamics Satellite |
| AMTS | Arctic Mesopause Temperture Study |
| STSP | Solar Terrestrial Science Programme |
| GCOS | Global Climate Observing System |
| GHZ | Giga Hertz |
| RHI | Range-height-indicator |
| HRDI | High Resolution Doppler Imager |
| HEOS-A2 | Highly Eccentric Orbit Satellite |
| LCL | Lifting Consdensation Level |
| EACR | Environmental Area Characterization Report |