| Acronym | Meaning |
 | NAIC | National Astronomy And Ionosphere Center |
| IGE | International Group Elements |
| ICF | Instrument Control Facility |
| NPGATE | NCAR PROFS Gateway Computer |
| VTVM | Vacuum Tube Voltmeter |
| LAC | Local Area Coverage |
| PCAST | President's Council Of Advisers On Science And Technology |
| NOAA | National Oceanic And Atmospheric Administration |
| NESDD | NOAA Earth Science Data Directory |
| MSI | Measurements |
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