| Acronym | Meaning |
| EVA | Extravehicular Activity |
| ISO | Infrared Space Observatory |
| RMS | Remote Manipulator System |
| CD-ROM | Compact Disk Read-Only Memory |
| CFA | Harvard-Smithsonian Center For Astrophysics |
| SPOT | Systeme Probatoire Pour L'Observation De La Terre |
| ESA | European Space Agency |
| ET | Ephemeris Time |
| ISAMS | Improved Stratospheric And Mesospheric Sounder |
| DACS | DATA Acquisition And Control Subsystem |