| Acronym | Meaning |
 | GGI | GPS Geoscience Instrument |
| LEADEX | Lead Experiment |
| ALEC | American Legislative Exchange Council |
| OIES | Office For Interdisciplinary Earth Studies |
| SMETE | National SMETE (Science |
| GST | GPS Science And Technology Program |
| ASIS | American Society For Industrial Security |
| APT | Automatic Picture Transmission |
| ETG | Eclipse Task Group |
| ATMOS | Atmospheric Trace Molecules Observed By Spectroscopy |
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