| Acronym | Meaning |
| JOSS | Joint Office For Science Support |
| ISSE | Institute For The Study Of Society And The Environment |
| PEP | Photo-electron Plasma |
| DLPDU | Data Link Protocol Data Unit |
| ERS-II | European Research Satellite |
| IIWG | International Investigator Working Group |
| RATS | Real-time Aircraft Tracking System |
| FL | Foothills Laboratory |
| ILS | Instrument Landing System |
| ACRS | Advisory Committee |