| Acronym | Meaning |
| AIS | Acceptable Intake For Subchronic Exposure |
| GRM | Geopotential Research Mission |
| AEM | Application Evaluation Matrix |
| DRL | Data Requirements List |
| MFE | Magnetic Field Explorer |
| CA | Citizen Act |
| UAO | Upper Atmosphere Observatory |
| CALS | Computer-aided Acquisition And Logistics Support |
| SVT | Simulated Variable Thickness |
| NEXAIR | Next Generation Upper Air System |