| Acronym | Meaning |
| OBS | Observe |
| TPF | Terminal Phase Finalization (Braking) |
| CSD | LCharles Stark Draper Laboratory (MIT) |
| SOW | Sox Supercritical Oxygen |
| OXD | Oxide |
| MPLN | Maintenance Planning (Data Base) |
| PETB | Preflight Test Bus |
| MSLD | Mass Spectrometer Leak Detector |
| PLAT | Platform |
| OA | Operational Aft (DSC Or MOM) |