| Acronym | Meaning |
| UTC | Universal Time Coordinate Or Coordinated Universal Time |
| ARAR | Applicable Or Relevant And Appropriate |
| TDR | Tracking And Data Relay |
| INDOEX | Indian Ocean Experiment |
| AMS | Accelerator Mass Spectrometer |
| NDVI | Greeness Index From Satellites |
| ADF | Automatic Direction Finding |
| SERON | Southeastern Regional Oxidant Network Program |
| DF | Direction Finding |
| ALEC | American Legislative Exchange Council |