| Acronym | Meaning |
 | TW | Thumbwheel |
| STD | LStandard Distribution List (letter Denoting Which List |
| CCMS | Checkout |
| LFAM | Low Frequency Accelerometer Modes |
| ISPM | International Solar Polar Mission |
| TST | Test |
| LCC | Launch Control Center (KSC) |
| LH2 | Liquid Hydrogen |
| UPS | Uninterruptible Power System |
| FPB | Fuel Preburner |
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