| Acronym | Meaning |
 | IMU | Inertial Measurement Unit |
| MMCC | Mission Management And Control Centre |
| HR | Hertzsprung-Russell |
| USML | United States Microgravity Laboratory |
| CGF | Crystal Growth Furnace |
| JD | Julian Date; Julian Day (Number) |
| NOAA | National Oceanic And Atmospheric Administration |
| LERC | Lewis Research Center |
| GSFC | Goddard Space Flight Center |
| AGN | Active Galactic Nucleus |
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