| Acronym | Meaning |
 | DM | Dark Matter |
| EDO | Extended Duration Orbiter |
| LMC | Large Magellanic Cloud |
| EODC | Earth Observation Data Centre |
| ESO | European Southern Observatory |
| CIS | Commonwealth Of Independent States |
| SOCC | Satellite Operations Control Center |
| TPS | Thermal Protection System |
| SEM | Space Environment Monitor |
| VOIR | Venus Orbiting Imaging Radar |
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