| Acronym | Meaning |
| APS | Array Processing System |
| OSSE | Observing System Simulation Experiment |
| AFASE | Association For Applied Solar Energy |
| DSDP | Deep Sea Drilling Project |
| CAPS | Center For The Analysis And Prediction Of Storms |
| FAPS | Freedom Attached Payloads |
| FCST | Federal Council For Science And Technology |
| DDS | Data Delivery Services |
| PGGA | Permanent GPS Geodetic Array |
| MILNET | Military Network |