| Acronym | Meaning |
| OSD | Office Of Systems Development |
| RASS | Radio Acoustic Sounding System |
| QCMS | Quality Control Monitoring System |
| GAT | General Aviation Transponder |
| MDM | Multiplexer/demultiplexer |
| OCTA | Oxidizing Capacity Of The Troposphere Atmosphere |
| EOS-A | First NPOP |
| GEOS | Geostationary Earth-Orbiting Satellite |
| CCF | Central Computing Facility |
| PAGES | Past Global Changes |