| Acronym | Meaning |
| REM | Rat Enclosure Module |
| IAPPP | International Amateur/Professional Photoelectric Photometry |
| UARS | Upper Atmosphere Research Satellite |
| SSI | Solid-State Imager / Space Studies Institut |
| OCTS | Ocean Color And Temperature Scanner |
| SIXA | Silicon X-ray Array |
| EUTELSAT | European Telecommunications Satellite Organization |
| MLS | Microwave Limb Sounder |
| GST | Greenwich Sidereal Time |
| MITI | Ministry Of International Trade And Industry |