| Acronym | Meaning |
| HB | Horizontal Branch |
| ESPC | European Space Power Conference |
| TSS | Targeted Search System / Tethered Satellite System |
| NPOE | NPO Energiya |
| VRM | Venus Radar Mapper |
| NPO-PM | NPO Prikladnoi Mekhaniki |
| DCX | Delta Clipper EXperimental |
| NRAO | National Radio Astronomy Observatory |
| ANSI | American National Standards Institute |
| CRRES | Combined Release/Radiation Effects Satellite |