| Acronym | Meaning |
| PA | Position Angle |
| DSN | Defense Switched Network |
| VAS | VISSR Atmospheric Sounder |
| PAWS | Psychological |
| IRIG | Inter-range Instrumentation Group |
| NODS | NASA Ocean Data System |
| NIES | National Institute Of Environmental Science |
| MIMD | Multiple Instruction Multiple Data |
| FAS | Federation Of American Scientists |
| AXAF | Advanced X-ray Astrophysics Facility |