| Acronym | Meaning |
| ISIS | International Satellites For Ionospheric Studies |
| CDC | Control Data Corporation |
| WSI | WSI Corporation |
| DMA | Directory Of Military Application |
| SUB-MM | Submillimeter Spectrometer |
| GAPEX | Ground-based Atmospheric Profiling Experiment |
| QPF | Quantitative Prediction Of Precipitation |
| GATE | Global Atmospheric Research Programme Atlantic Tropical Experiment |
| CAPS | Cassini Plasma Spectrometer |
| THEMIS | N/A |