| Acronym | Meaning |
| PPS-PODS | Precise Position System- Precise Orbit Determination System |
| NLDS | National Lightning Detection System |
| LLR | Lunar Laser Ranging |
| MARK-IVB | N/A |
| MM5 | Fifth-generation Mesoscale Model |
| IDEA LAB | Interactive's Digital Environmental Analysis Lab |
| DAS | Data-Acquisition System |
| TIME-GCM | Thermosphere-Ionosphere-Mesosphere-Electrodynamic General Circulation Model |
| AL/SPD | AL Special Programs Division |
| ANS | American National Standard |