| Acronym | Meaning |
| MFV | Main Fuel Valve |
| VCB | Vertical Location Of The Center Of Buoyancy |
| GSFC | Goddard Space Flight Center (Greenbelt |
| RSDP | Remote Site Data Processor |
| GPME | General Purpose Mission Equipment |
| PR | PositionRecord |
| IMP | Initial Memory Protection |
| ITS | Instrumentation Telemetry Station |
| PREF | Preference |
| DMR | Developmental Instrumentation MDM-Right |