| Acronym | Meaning |
| ETE | Estimated Time En Route |
| BPI | Budget |
| EMAP | Environmental Monitoring And Assessment Program |
| ACTS | Atmospheric Chemistry Of Transient Species |
| MUSE | Monitor Of Ultraviolet Solar Energy |
| EISCAT | European Incoherent Scatter Radar System |
| DASM | Design And Analysis Support Model |
| DNO | Do Not Operate |
| HDGCP | Human Dimensions Of Global Change Program |
| WCIRP | World Climate Impacts And Response Strategies Program |