| Acronym | Meaning |
| IT | Information Technology |
| ASR | Airport Surveillance Radar |
| AGT | Advanced Ground Transport |
| APDF | Accelerator Performance Demonstration Facility |
| NAIC | National Astronomy And Ionosphere Center |
| TIE-GCM | Thermosphere/Ionosphere/Electrodynamics General Circulation Model |
| ISS | Integrated Sounding System |
| GRP | Geophysical Research Program |
| IFOV | Instantaneous Field Of View |
| BEJ | Best Expert Judgment |