| Acronym | Meaning |
| PRC | People's Republic Of China |
| SAM | Sun-angle Magnetometer |
| IUCRM | Inter Union Commission On Radio Meteorology |
| DASM | Design And Analysis Support Model |
| MAPS/RUC | MAPS Is The Research Version Of The Rapid Update Cycle |
| VIRGS | VISSR Image Registration And Gridding System |
| DSN | Defense Switched Network |
| NEHRP | National Earthquake Hazard Reduction Program |
| ALE | Atmospheric Lifetimes Experiment |
| PPP | Point-to-Point Protocol |