| Acronym | Meaning |
| M-ISWS | Illinois State Water Survey |
| DAI | Data Assimilation Initiative |
| SCR | Selective Chopper Radiometer |
| AESA | Atmospheric Effects Of Stratospheric Aircraft |
| AFOE | Advanced Fiber Optic Echelle |
| OSO | Office Of Systems Operations |
| RAPB | Regional Analysis And Prediction Branch |
| TRACE | Transport And Atmospheric Chemistry Near The Equator |
| P/L-EX | Payload Executive |
| LCC | Life Cycle Cost |