| Acronym | Meaning |
 | MBB | Messerschmitt-Belkow-Blohm |
| CITA | Canadian Institute For Theoretical Astrophysics |
| A&A | Astronomy And Astrophysics |
| ISTS | Institute For Space And Terrestrial Science |
| EMU | Extravehicular Mobility Unit |
| ESIS | European Space Information System |
| ROSAT | ROentgen Satellite |
| CADH | Communications And Data Handling |
| INMARSAT | International Maritime Satellite |
| EROS | Earth Resources Observations System |
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