| Acronym | Meaning |
| AVHRR | Advanced Very High Resolution Radiometer |
| SAMPEX | Solar Anomalous And Magnetospheric Particle EXplorer |
| XMM | X-ray Multi Mirror |
| ASEM | Assembly Of Station By EVA Methods |
| TIROS | Television InfraRed Observation Satellite |
| SSO | Spurious Shut-off |
| AOA | Angle Of Attack |
| GEM | Giotto Extended Mission |
| IPAC | Infrared Processing & Analysis Center |
| CV | Cataclysmic Variable |