| Acronym | Meaning |
| EUTELSAT | European Telecommunications Satellite Organization |
| AFGWC | Air Force Global Weather Center |
| VHF | Very High Frequency |
| AE | Arianespace SA |
| MLI | Multi-Layer Insulation |
| OGO | Orbiting Geosurvey Observatories |
| TAU | Thousand Astronomical Unit |
| EURECA | European Retrievable Carrier |
| ISZ | Iskusstvenniy Sputnik Zemli |
| AFETR | USAF's ETR |