| Acronym | Meaning |
| STSDAS | Space Telescope Science Data Analysis System |
| SSCE | Solid Surface Combustion Experiment |
| RCS | Reaction Control System / Revision Control System |
| MS | Main Sequence |
| STARCAL | Star Calibration |
| ICE | International Cometary Explorer |
| PRTLS | Powered RTLS |
| EUTELSAT | European Telecommunications Satellite Organization |
| CDM | Cold Dark Matter |
| TOMS | Total Ozone Mapping Spectrometer |