| Acronym | Meaning |
 | MAB | Man And The Biosphere Program |
| NAVAID | Navigation Aid |
| GSP | Geophysical Statistics Project |
| POGO | Polar Orbiting Geophysical Observatory |
| RA | Radio Active |
| LARC | Langley Research Center |
| USARP | United States Antarctic Research Program |
| MLT | Magnetic Local Time |
| OSI | Open Systems Interconnection |
| RGP | Reactive Gases And Particles Project |
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