| Acronym | Meaning |
| VMF | Voenno-Morskoy Flot |
| IOC | In-Orbit Checkout And Calibration |
| RCS | Reaction Control System / Revision Control System |
| LPV | Long Period Variable |
| HRDI | High Resolution Doppler Imager |
| AGE | Auxiliary Ground Equipment |
| ER | Eastern Range |
| DCX | Delta Clipper EXperimental |
| AACS | Attitude And Articulation Control Subsystem |
| VRM | Venus Radar Mapper |