| Acronym | Meaning |
| FRC | Flight Research Center |
| PEN | Penicillin |
| VIS | Visibility |
| HOSC | Huntsville Operations Support Center |
| VGVT | Vertical Ground Vibration Test |
| SAB | SACstrategic Air Command(USAF) |
| FDS | Fluid Distribution System |
| TM | TrafficModel |
| NOCC | Network Operations Control Center (GSFC) |
| MOD | Module |