| Acronym | Meaning |
| HAC | Heads And Chairs |
| ESSC | Environmental Science Services Administration |
| PRE-AWIPS | Preprototype AWIPS |
| DD | Dated |
| AWWA | American Waterworks Association |
| AIS | Administrative Information Systems |
| MFE/MAGNOLIA | Magnetic Field Explorer/Magnolia Mission |
| DPFC | Defense Program Field Council |
| VLBI | Very Long Baseline Interferometry |
| IFD | In-flight Deployment |