| Acronym | Meaning |
 | ESPC | European Space Power Conference |
| IPAC | Infrared Processing & Analysis Center |
| RTG | Radioisotope Thermoelectric Generator |
| NTT | New Technology Telescope |
| MJD | Modified Julian Date |
| GEODSS | Ground-based Electro-optical Deep-space Surveillance System |
| SOLSTICE | Solar Stellar Irradiance Comparison Experiment |
| SLS | Space(lab) Life Sciences |
| IPMP | Investigations Into Polymer Membrane Processing |
| GGM | Goskogidromet/Gidromettsentr |
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