| Acronym | Meaning |
| IV | Intravehicular |
| HOSC | Huntsville Operations Support Center |
| SCB | Software Control Board |
| EWA | Estimated Warehouse Arrival |
| GCV | Gaseous Oxygen Control Valve |
| RAM | Radar Absorption Material |
| ENC | Encode |
| SPS | Secondary Propulsion System |
| SPD | Speed |
| SIT | SSV Integrated Test |