| Acronym | Meaning |
| EXPRS | EXpendable Probe Receiver System |
| ATDRSS | Advanced TDRSS |
| IASPEI | International Association Of Seismology And Physics Of The Earth's Interior |
| FRMAC | Federal Radiological Monitoring And Assessment Center |
| DVM | Dynamic Vegetation Model |
| BFS | Business And Financial Services |
| NMD | NASA Master Directory |
| MISR | Multiangle Imaging Spectroradiometer |
| FIRE | Fast Imaging Ranicon Experiment |
| NPC | National Processing Centers |