| Acronym | Meaning |
 | IAG | International Association Of Geodesy |
| HEAO | High Energy Astronomy Observatory |
| TIE-GCM | Thermosphere/Ionosphere/Electrodynamics General Circulation Model |
| CBO | Carrier Balloon/Omegasonde |
| LIE | Line Islands Experiment |
| JHU | Johns Hopkins University |
| MOCD | Magneto-optics Compact Disk |
| NTSB | National Transportation Safety Board |
| IRI | International Research Institute For Climate Prediction |
| EM | Electronic Mail |
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