| Acronym | Meaning |
| SAMPEX | Solar Anomalous And Magnetospheric Particle EXplorer |
| MECO | Main Engine CutOff |
| GRO | Gamma Ray Observatory |
| CFF | Columbus Free Flyer |
| IBSS | Infrared Background Signature Survey |
| PLSS | Portable Life Support System |
| FOLD | Federally-Owned LANDSAT Data |
| ISU | International Space University |
| HPOTP | High Pressure Oxidizer Turbopump |
| EGRET | Energetic Gamma Ray Experiment Telescope |