| Acronym | Meaning |
| HEOS-A2 | Highly Eccentric Orbit Satellite |
| ASRC | Atmospheric Sciences Research Center |
| UCAID | University Corporation For Advanced Internet Development |
| BRL | Ballistics Research Laboratory |
| TRW | Thundershowers |
| NRDC | National Research Development Corporation |
| ISS | Information Support Services |
| NMF | Normal Mode Functions |
| UOQ | Unaccompanied Officers' Quarters |
| DDHS | Digital Data Handling System |