| Acronym | Meaning |
| CM | Center Of Mass |
| SMM | Solar Maximum Mission |
| LFC | Large Format Camera |
| VFT | Visual Function Tester |
| EGRET | Energetic Gamma Ray Experiment Telescope |
| FFCC | Free-Flyer Control Centre |
| RCS | Reaction Control System / Revision Control System |
| SUSIM | Solar Ultraviolet Spectral Irradiance Monitor |
| LOX | Liquid OXygen |
| SSME | Space Shuttle Main Engine |