| Acronym | Meaning |
| EH | Assistant Secretary For Environment |
| MTEM | Magnetosphere-Thermosphere Explorer Mission |
| RASS | Radio Acoustic Sounding System |
| OSSA | Office Of Space Science And Applications |
| PRIMO | Problems Related To Ionospheric Modeling And Observations Project |
| AIST | Agency Of Industrial Science & Technology |
| EP | Electrical Power |
| AGM | Atmospheric Gas Measurements Section |
| DOS | Department Of State |
| AMIP | Atmospheric Model Intercomparison Project |