| Acronym | Meaning |
| USRA | Universities Space Research Association |
| UVP | Ultrasonic Vibration Potential |
| TVA | Tennessee Valley Authority |
| GIPQ | Gage Invariant Periodic Quantization |
| TSDW | Torsional Spin Density Wave |
| SEU | Single Event Upset (in Spacecraft Power Systems) |
| PFPD | Pulsed-flame Photometer Detector |
| EPDM | Ethylene-propylene Diene Monomer |
| EDEC | Equal Distances Equal Charges Model |
| INS | Ion Neutralization Spectroscopy |