| Acronym | Meaning |
| HAM | Height Adjustment Maneuver |
| SIA | Shuttle Induced Atmosphere |
| LST | Large Stellar Telescope |
| CTE | CentralTimingEquipment |
| NET | NNET Network (N/W Preferred) |
| HWWS | Hyperfiltration Wash Water Recovery System |
| DDO | Discrete Digital Output |
| SS | Single String |
| SBA | Small Business Administration |
| RADAR | Radio Detecting And Ranging |