| Acronym | Meaning |
 | MPESS | Multiple Purpose Experiment Support Structure |
| AGN | Active Galactic Nucleus |
| GEM | Graphite Epoxy Motor |
| TES | Thermal Emission Spectrometer |
| AFGWC | Air Force Global Weather Center |
| RCS | Reaction Control System / Revision Control System |
| CG | Center Of Gravity |
| GTO | Geostationary Transfer Orbit |
| WFF | Wallops Flight Facility |
| TSUP | Tsentr Upravileniya Polyoti |
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