| Acronym | Meaning |
| USN | United States Navy |
| TDRS | Tracking And Data Relay Satellite |
| MMT | Multiple Mirror Telescope |
| EUMETSAT | European Meterological Satellite Organisation |
| TSPK | Tsentr Podgotovka Kosmonavti |
| VPF | Vertical Processing Facility |
| LIS | Lightning Imaging Sensor |
| PMC | Permanently Manned Capability |
| RCC | Reinforced Carbon-Carbon |
| HV | High Voltage |