| Acronym | Meaning |
 | NCI | Phasing Maneuver |
| GG | Gravity Gradient |
| E/W | Energy Over Weight |
| COFW | Certificate Of Flight Worthiness |
| SP-PMS | Performance Management Systems Office (KSC) |
| FPR | Flight Performance Reserve |
| IMP | Initial Memory Protection |
| PQGS | Propellant Quantity Gaging System |
| RUPT | Interrupt |
| SL-SSS | Spacelab Subsystem(s) Segment |
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