| Acronym | Meaning |
| USWRP | United States Weather Research Program |
| IUGG | International Union Of Geodesy And Geophysics |
| DNO | Do Not Operate |
| NTRANS | Metacode Translator |
| LEDA | On-line Earthnet Data Access |
| HPA | High Power Amplifier |
| RPS | Routine Product Set |
| EROC | Ecological Rates Of Change |
| TRACE | Transition Region And Coronal Explorer |
| MFEM | Magnetic Field Explorer Mission |