| Acronym | Meaning |
| AIRS | Atmospheric Infrared Sounder |
| TRMM | Tropical Rainfall Measuring Mission |
| JERS | Japanese Earth Resources Satellite |
| E | Elliptical (for Galaxies) |
| AEPI | Atmospheric Emissions Photometric Imaging |
| FRED | Space Station Freedom |
| HRSC | High Resolution Stereo Camera |
| GNC | Guidance |
| EODC | Earth Observation Data Centre |
| NSSDC | National Space Science Data Center |