| Acronym | Meaning |
 | ELDO | European Launcher Development Organization |
| H | Hecto |
| OSR | Office Of Scientific Research |
| MAN | Metropolitan Area Network |
| ISIS | International Satellites For Ionospheric Studies |
| EUMETSAT | European Meteorological Satellite |
| NEEDS | N/A |
| INSU | National Institute For Sciences Of The Universe |
| ESFU | Enhanced Standard Format Unit |
| FIRE | First ISLSCP Regional Experiment |
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