| Acronym | Meaning |
| CLR | Clear |
| SMG | SPaceflight Meteorology Group |
| NJP | NNJP Network Job Processing |
| OPT | OPerational Pressure Transducer |
| MMH | Maintenance Man-Hour |
| IVT | Intervehicular Transfer |
| VERT | Vertical |
| G | LOW Ground Lift-Off Weight |
| UD | Update |
| UCPU | Urine Collection And Pretreatment Unit |