| Acronym | Meaning |
| ASEP | Accident Sequence Evaluation Program |
| CAS | Cooperative Application Satellite |
| IS | Institute Sponsors |
| ETC | Estimate Time To Complete |
| VOR | VHF Omnidirectional Range |
| WPL | Wave Propagation Laboratory |
| NIMBUS | Networked Information Management Client-Based User Service |
| RAM | Research Application Module |
| MODAC | Meteorological Observation And Data Assimilation Center |
| GHB | Goddard Handbook |