| Acronym | Meaning |
| ACO | Advance Change Order |
| CCCS | Change And Configuration Control System |
| ARGOS | Data Collection And Location System |
| DDF | Digital Data Formatter |
| NSS | Nodal Switching Subsystem |
| TAO | Thermal Array In The Ocean |
| DG | Data General |
| S/TM | Stratospheric/tropospheric Measurements |
| SSU | Stratospheric Sounding Unit |
| EPOP | European Polar Orbiting Platform |