| Acronym | Meaning |
 | ACATS | Airborne Chromatograph For Atmospheric Trace Species |
| DRM | Design Reference Mission |
| PGGA | Permanent GPS Geodetic Array |
| USTAR | UCAR Scientist's Technical Areas Of Research |
| DLS | Dynamic Limb Sounder |
| EMF | Electromotive Force |
| GGEM | Gravity Gradiometer Explore Mission |
| ARTCC | Air Route Traffic Control Center |
| SR | Steradian |
| ASAP | Aerospace Safety Automation Program |
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