| Acronym | Meaning |
| POEM | Polar Orbiting Earth Mission |
| SBIR | Small Business Innovation Research |
| GR | General Relativity |
| GNC | Guidance |
| SAMPEX | Solar Anomalous And Magnetospheric Particle EXplorer |
| SLS | Space(lab) Life Sciences |
| CELSS | Controlled Ecological Life Support System |
| FBV | Fuel Bleed Valve |
| SOHO | SOlar Heliospheric Observatory |
| ERS | Environmental Research Satellite |