| Acronym | Meaning |
 | SAS | Space Activity Suit / Space Adaptation Syndrome |
| ESPC | European Space Power Conference |
| RTG | Radioisotope Thermoelectric Generator |
| FHST | Fixed Head Star Trackers |
| MACS | Modular Attitude Control System |
| GGM | Goskogidromet/Gidromettsentr |
| OTV | Orbital Transfer Vehicle |
| RCC | Reinforced Carbon-Carbon |
| ATM | Amateur Telescope Maker |
| EODC | Earth Observation Data Centre |
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