| Acronym | Meaning |
| VHAA | Very High Altitude Abort |
| SMRD | Spin Motor Rotational Detector |
| NR | Noise Rating |
| STS | Space Transportation System |
| PC | Chamber Pressure |
| TCMD | Transportation Control And Movement Document |
| DC | Design Change Authorization |
| PLISN | Provisioning List Item Sequence Number |
| GHA | Greenwich Hour Angle |
| RICC | Remote Intercomputer Communications Interface |