| Acronym | Meaning |
 | CG | Center Of Gravity |
| ASTER | Advanced Spaceborne Thermal Emission And Reflection |
| WD | White Dwarf |
| AGU | American Geophysical Union |
| NSF | National Science Foundation |
| OTHB | Over The Horizon Backscatter |
| MOL | Manned Orbiting Laboratory |
| MFV | Main Fuel Valve |
| MPESS | Multiple Purpose Experiment Support Structure |
| WINDII | Wind Imaging Interferometer |
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