| Acronym | Meaning |
| PPF | Columbus Polar Platform |
| DACS | DATA Acquisition And Control Subsystem |
| HRSI | High-temperature Reusable Surface Insulation |
| OMB | Office Of Management And Budget |
| EUTELSAT | European Telecommunications Satellite Organization |
| EDO | Extended Duration Orbiter |
| DLR | Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt |
| SEDS | Students For The Exploration And Development Of Space |
| MB | Manned Base |
| WMO | World Meterological Organisation |