| Acronym | Meaning |
| DORIS | Determination D'Orbite Et Radiopositionement Integre Par Satellite |
| APA | American Planning Association |
| M&O | Maintenance And Operations |
| USGCRP | United States Global Change Research Program |
| DOOS | DICOMED Online Operating System |
| ESC | Engineering Support Center |
| PCRGA | Precipitation Chemistry |
| IWGMFS | International Working Group On Magnetic Field Satellites |
| EG&G | Inc. |
| EURATOM | European Atomic Energy Agency/Community |