| Acronym | Meaning |
| DA | Deka |
| NPC | National Processing Centers |
| FLD | First Level Destination |
| MBONE | Multicast BackBONE |
| KNMI | Koninklijk Nederlands Meteorologisch Instituut |
| APJ | The Astrophysical Journal |
| D/L | Downlink |
| AGT | Advanced Ground Transport |
| TDF | Technology Development Facility |
| MAR | Modernization And Associated Restructing |